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Finding the Fourth Proportional to 62,631.64, 86,431.62 and 34,337.80

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Solution

The fourth proportional to 62,631.64, 86,431.62 and 34,337.80 is: 47,386.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,631.64 : 86,431.62 = 34,337.80 : x
  2. Step 2: Convert to fraction form
    62,631.64/86,431.62 = 34,337.80/x
  3. Step 3: Cross multiply
    62,631.64x = 86,431.62 × 34,337.80
  4. Step 4: Simplify right side
    62,631.64x = 2,967,871,681.24
  5. Step 5: Solve for x
    x = 2,967,871,681.24/62,631.64
  6. Step 6: Final answer
    x = 47,386.14

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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.