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Finding the Fourth Proportional to 14,760.70, 20,375.45 and 10,813.16

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Solution

The fourth proportional to 14,760.70, 20,375.45 and 10,813.16 is: 14,926.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,760.70 : 20,375.45 = 10,813.16 : x
  2. Step 2: Convert to fraction form
    14,760.70/20,375.45 = 10,813.16/x
  3. Step 3: Cross multiply
    14,760.70x = 20,375.45 × 10,813.16
  4. Step 4: Simplify right side
    14,760.70x = 220,323,038.34
  5. Step 5: Solve for x
    x = 220,323,038.34/14,760.70
  6. Step 6: Final answer
    x = 14,926.33

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.