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Finding the Fourth Proportional to 61,753.64, 92,658.12 and 28,455.87

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Solution

The fourth proportional to 61,753.64, 92,658.12 and 28,455.87 is: 42,696.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,753.64 : 92,658.12 = 28,455.87 : x
  2. Step 2: Convert to fraction form
    61,753.64/92,658.12 = 28,455.87/x
  3. Step 3: Cross multiply
    61,753.64x = 92,658.12 × 28,455.87
  4. Step 4: Simplify right side
    61,753.64x = 2,636,667,417.16
  5. Step 5: Solve for x
    x = 2,636,667,417.16/61,753.64
  6. Step 6: Final answer
    x = 42,696.55

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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.