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Finding the Fourth Proportional to 64,975.59, 97,398.59 and 38,692.71

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Solution

The fourth proportional to 64,975.59, 97,398.59 and 38,692.71 is: 58,000.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,975.59 : 97,398.59 = 38,692.71 : x
  2. Step 2: Convert to fraction form
    64,975.59/97,398.59 = 38,692.71/x
  3. Step 3: Cross multiply
    64,975.59x = 97,398.59 × 38,692.71
  4. Step 4: Simplify right side
    64,975.59x = 3,768,615,203.82
  5. Step 5: Solve for x
    x = 3,768,615,203.82/64,975.59
  6. Step 6: Final answer
    x = 58,000.48

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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.