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Finding the Fourth Proportional to 64,358.60, 96,461.10 and 26,918.60

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Solution

The fourth proportional to 64,358.60, 96,461.10 and 26,918.60 is: 40,345.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,358.60 : 96,461.10 = 26,918.60 : x
  2. Step 2: Convert to fraction form
    64,358.60/96,461.10 = 26,918.60/x
  3. Step 3: Cross multiply
    64,358.60x = 96,461.10 × 26,918.60
  4. Step 4: Simplify right side
    64,358.60x = 2,596,597,766.46
  5. Step 5: Solve for x
    x = 2,596,597,766.46/64,358.60
  6. Step 6: Final answer
    x = 40,345.78

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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.