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Finding the Fourth Proportional to 61,646.64, 92,393.22 and 28,331.28

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Solution

The fourth proportional to 61,646.64, 92,393.22 and 28,331.28 is: 42,461.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,646.64 : 92,393.22 = 28,331.28 : x
  2. Step 2: Convert to fraction form
    61,646.64/92,393.22 = 28,331.28/x
  3. Step 3: Cross multiply
    61,646.64x = 92,393.22 × 28,331.28
  4. Step 4: Simplify right side
    61,646.64x = 2,617,618,185.92
  5. Step 5: Solve for x
    x = 2,617,618,185.92/61,646.64
  6. Step 6: Final answer
    x = 42,461.65

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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.