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Finding the Fourth Proportional to 61,876.58, 92,799.98 and 28,564.66

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Solution

The fourth proportional to 61,876.58, 92,799.98 and 28,564.66 is: 42,840.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,876.58 : 92,799.98 = 28,564.66 : x
  2. Step 2: Convert to fraction form
    61,876.58/92,799.98 = 28,564.66/x
  3. Step 3: Cross multiply
    61,876.58x = 92,799.98 × 28,564.66
  4. Step 4: Simplify right side
    61,876.58x = 2,650,799,412.71
  5. Step 5: Solve for x
    x = 2,650,799,412.71/61,876.58
  6. Step 6: Final answer
    x = 42,840.11

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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.