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Finding the Fourth Proportional to 62,875.64, 86,768.64 and 34,583.12

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Solution

The fourth proportional to 62,875.64, 86,768.64 and 34,583.12 is: 47,724.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,875.64 : 86,768.64 = 34,583.12 : x
  2. Step 2: Convert to fraction form
    62,875.64/86,768.64 = 34,583.12/x
  3. Step 3: Cross multiply
    62,875.64x = 86,768.64 × 34,583.12
  4. Step 4: Simplify right side
    62,875.64x = 3,000,730,289.36
  5. Step 5: Solve for x
    x = 3,000,730,289.36/62,875.64
  6. Step 6: Final answer
    x = 47,724.85

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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.