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Finding the Fourth Proportional to 64,710.85, 89,287.19 and 37,848.11

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Solution

The fourth proportional to 64,710.85, 89,287.19 and 37,848.11 is: 52,222.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,710.85 : 89,287.19 = 37,848.11 : x
  2. Step 2: Convert to fraction form
    64,710.85/89,287.19 = 37,848.11/x
  3. Step 3: Cross multiply
    64,710.85x = 89,287.19 × 37,848.11
  4. Step 4: Simplify right side
    64,710.85x = 3,379,351,706.55
  5. Step 5: Solve for x
    x = 3,379,351,706.55/64,710.85
  6. Step 6: Final answer
    x = 52,222.34

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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.