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Finding the Fourth Proportional to 64,966.48, 97,480.64 and 45,006.72

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Solution

The fourth proportional to 64,966.48, 97,480.64 and 45,006.72 is: 67,531.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,966.48 : 97,480.64 = 45,006.72 : x
  2. Step 2: Convert to fraction form
    64,966.48/97,480.64 = 45,006.72/x
  3. Step 3: Cross multiply
    64,966.48x = 97,480.64 × 45,006.72
  4. Step 4: Simplify right side
    64,966.48x = 4,387,283,869.90
  5. Step 5: Solve for x
    x = 4,387,283,869.90/64,966.48
  6. Step 6: Final answer
    x = 67,531.50

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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.