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Finding the Fourth Proportional to 56,258.70, 84,294.54 and 39,583.74

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Solution

The fourth proportional to 56,258.70, 84,294.54 and 39,583.74 is: 59,309.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,258.70 : 84,294.54 = 39,583.74 : x
  2. Step 2: Convert to fraction form
    56,258.70/84,294.54 = 39,583.74/x
  3. Step 3: Cross multiply
    56,258.70x = 84,294.54 × 39,583.74
  4. Step 4: Simplify right side
    56,258.70x = 3,336,693,154.78
  5. Step 5: Solve for x
    x = 3,336,693,154.78/56,258.70
  6. Step 6: Final answer
    x = 59,309.82

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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.