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Finding the Fourth Proportional to 65,342.36, 97,981.82 and 38,332.08

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Solution

The fourth proportional to 65,342.36, 97,981.82 and 38,332.08 is: 57,479.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,342.36 : 97,981.82 = 38,332.08 : x
  2. Step 2: Convert to fraction form
    65,342.36/97,981.82 = 38,332.08/x
  3. Step 3: Cross multiply
    65,342.36x = 97,981.82 × 38,332.08
  4. Step 4: Simplify right side
    65,342.36x = 3,755,846,962.79
  5. Step 5: Solve for x
    x = 3,755,846,962.79/65,342.36
  6. Step 6: Final answer
    x = 57,479.51

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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.