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Finding the Fourth Proportional to 18,065.71, 27,032.91 and 14,916.43

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Solution

The fourth proportional to 18,065.71, 27,032.91 and 14,916.43 is: 22,320.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,065.71 : 27,032.91 = 14,916.43 : x
  2. Step 2: Convert to fraction form
    18,065.71/27,032.91 = 14,916.43/x
  3. Step 3: Cross multiply
    18,065.71x = 27,032.91 × 14,916.43
  4. Step 4: Simplify right side
    18,065.71x = 403,234,509.71
  5. Step 5: Solve for x
    x = 403,234,509.71/18,065.71
  6. Step 6: Final answer
    x = 22,320.44

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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.