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Finding the Fourth Proportional to 64,290.78, 96,451.56 and 26,830.02

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Solution

The fourth proportional to 64,290.78, 96,451.56 and 26,830.02 is: 40,251.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,290.78 : 96,451.56 = 26,830.02 : x
  2. Step 2: Convert to fraction form
    64,290.78/96,451.56 = 26,830.02/x
  3. Step 3: Cross multiply
    64,290.78x = 96,451.56 × 26,830.02
  4. Step 4: Simplify right side
    64,290.78x = 2,587,797,283.83
  5. Step 5: Solve for x
    x = 2,587,797,283.83/64,290.78
  6. Step 6: Final answer
    x = 40,251.45

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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.