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Finding the Fourth Proportional to 64,511.40, 96,747.90 and 25,045.80

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Solution

The fourth proportional to 64,511.40, 96,747.90 and 25,045.80 is: 37,561.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,511.40 : 96,747.90 = 25,045.80 : x
  2. Step 2: Convert to fraction form
    64,511.40/96,747.90 = 25,045.80/x
  3. Step 3: Cross multiply
    64,511.40x = 96,747.90 × 25,045.80
  4. Step 4: Simplify right side
    64,511.40x = 2,423,128,553.82
  5. Step 5: Solve for x
    x = 2,423,128,553.82/64,511.40
  6. Step 6: Final answer
    x = 37,561.25

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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.