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Finding the Fourth Proportional to 64,982.40, 97,424.64 and 25,534.08

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Solution

The fourth proportional to 64,982.40, 97,424.64 and 25,534.08 is: 38,281.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,982.40 : 97,424.64 = 25,534.08 : x
  2. Step 2: Convert to fraction form
    64,982.40/97,424.64 = 25,534.08/x
  3. Step 3: Cross multiply
    64,982.40x = 97,424.64 × 25,534.08
  4. Step 4: Simplify right side
    64,982.40x = 2,487,648,551.73
  5. Step 5: Solve for x
    x = 2,487,648,551.73/64,982.40
  6. Step 6: Final answer
    x = 38,281.88

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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.