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Finding the Fourth Proportional to 10,998.70, 16,498.05 and 10,852.90

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Solution

The fourth proportional to 10,998.70, 16,498.05 and 10,852.90 is: 16,279.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,998.70 : 16,498.05 = 10,852.90 : x
  2. Step 2: Convert to fraction form
    10,998.70/16,498.05 = 10,852.90/x
  3. Step 3: Cross multiply
    10,998.70x = 16,498.05 × 10,852.90
  4. Step 4: Simplify right side
    10,998.70x = 179,051,686.85
  5. Step 5: Solve for x
    x = 179,051,686.85/10,998.70
  6. Step 6: Final answer
    x = 16,279.35

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.