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Finding the Fourth Proportional to 61,884.30, 92,811.59 and 28,572.38

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Solution

The fourth proportional to 61,884.30, 92,811.59 and 28,572.38 is: 42,851.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,884.30 : 92,811.59 = 28,572.38 : x
  2. Step 2: Convert to fraction form
    61,884.30/92,811.59 = 28,572.38/x
  3. Step 3: Cross multiply
    61,884.30x = 92,811.59 × 28,572.38
  4. Step 4: Simplify right side
    61,884.30x = 2,651,847,410.96
  5. Step 5: Solve for x
    x = 2,651,847,410.96/61,884.30
  6. Step 6: Final answer
    x = 42,851.70

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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.