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Finding the Fourth Proportional to 38,632.08, 57,920.76 and 19,904.04

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Solution

The fourth proportional to 38,632.08, 57,920.76 and 19,904.04 is: 29,841.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,632.08 : 57,920.76 = 19,904.04 : x
  2. Step 2: Convert to fraction form
    38,632.08/57,920.76 = 19,904.04/x
  3. Step 3: Cross multiply
    38,632.08x = 57,920.76 × 19,904.04
  4. Step 4: Simplify right side
    38,632.08x = 1,152,857,123.87
  5. Step 5: Solve for x
    x = 1,152,857,123.87/38,632.08
  6. Step 6: Final answer
    x = 29,841.96

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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.