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Finding the Fourth Proportional to 64,463.64, 96,691.56 and 38,334.66

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Solution

The fourth proportional to 64,463.64, 96,691.56 and 38,334.66 is: 57,499.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,463.64 : 96,691.56 = 38,334.66 : x
  2. Step 2: Convert to fraction form
    64,463.64/96,691.56 = 38,334.66/x
  3. Step 3: Cross multiply
    64,463.64x = 96,691.56 × 38,334.66
  4. Step 4: Simplify right side
    64,463.64x = 3,706,638,077.47
  5. Step 5: Solve for x
    x = 3,706,638,077.47/64,463.64
  6. Step 6: Final answer
    x = 57,499.67

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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.