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Finding the Fourth Proportional to 12,000.18, 16,561.08 and 6,696.03

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Solution

The fourth proportional to 12,000.18, 16,561.08 and 6,696.03 is: 9,240.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,000.18 : 16,561.08 = 6,696.03 : x
  2. Step 2: Convert to fraction form
    12,000.18/16,561.08 = 6,696.03/x
  3. Step 3: Cross multiply
    12,000.18x = 16,561.08 × 6,696.03
  4. Step 4: Simplify right side
    12,000.18x = 110,893,488.51
  5. Step 5: Solve for x
    x = 110,893,488.51/12,000.18
  6. Step 6: Final answer
    x = 9,240.99

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Half 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.