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Finding the Fourth Proportional to 61,925.58, 85,492.71 and 40,766.36

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Solution

The fourth proportional to 61,925.58, 85,492.71 and 40,766.36 is: 56,280.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,925.58 : 85,492.71 = 40,766.36 : x
  2. Step 2: Convert to fraction form
    61,925.58/85,492.71 = 40,766.36/x
  3. Step 3: Cross multiply
    61,925.58x = 85,492.71 × 40,766.36
  4. Step 4: Simplify right side
    61,925.58x = 3,485,226,165.77
  5. Step 5: Solve for x
    x = 3,485,226,165.77/61,925.58
  6. Step 6: Final answer
    x = 56,280.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.