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Finding the Fourth Proportional to 18,061.30, 24,913.69 and 11,929.04

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Solution

The fourth proportional to 18,061.30, 24,913.69 and 11,929.04 is: 16,454.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,061.30 : 24,913.69 = 11,929.04 : x
  2. Step 2: Convert to fraction form
    18,061.30/24,913.69 = 11,929.04/x
  3. Step 3: Cross multiply
    18,061.30x = 24,913.69 × 11,929.04
  4. Step 4: Simplify right side
    18,061.30x = 297,196,220.34
  5. Step 5: Solve for x
    x = 297,196,220.34/18,061.30
  6. Step 6: Final answer
    x = 16,454.87

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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.