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Finding the Fourth Proportional to 61,707.52, 92,492.80 and 30,565.12

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Solution

The fourth proportional to 61,707.52, 92,492.80 and 30,565.12 is: 45,813.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,707.52 : 92,492.80 = 30,565.12 : x
  2. Step 2: Convert to fraction form
    61,707.52/92,492.80 = 30,565.12/x
  3. Step 3: Cross multiply
    61,707.52x = 92,492.80 × 30,565.12
  4. Step 4: Simplify right side
    61,707.52x = 2,827,053,531.14
  5. Step 5: Solve for x
    x = 2,827,053,531.14/61,707.52
  6. Step 6: Final answer
    x = 45,813.76

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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.