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Finding the Fourth Proportional to 27,892.71, 38,479.07 and 16,555.77

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Solution

The fourth proportional to 27,892.71, 38,479.07 and 16,555.77 is: 22,839.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,892.71 : 38,479.07 = 16,555.77 : x
  2. Step 2: Convert to fraction form
    27,892.71/38,479.07 = 16,555.77/x
  3. Step 3: Cross multiply
    27,892.71x = 38,479.07 × 16,555.77
  4. Step 4: Simplify right side
    27,892.71x = 637,050,549.96
  5. Step 5: Solve for x
    x = 637,050,549.96/27,892.71
  6. Step 6: Final answer
    x = 22,839.32

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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.