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Finding the Fourth Proportional to 64,201.70, 96,325.28 and 28,659.71

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Solution

The fourth proportional to 64,201.70, 96,325.28 and 28,659.71 is: 42,999.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,201.70 : 96,325.28 = 28,659.71 : x
  2. Step 2: Convert to fraction form
    64,201.70/96,325.28 = 28,659.71/x
  3. Step 3: Cross multiply
    64,201.70x = 96,325.28 × 28,659.71
  4. Step 4: Simplify right side
    64,201.70x = 2,760,654,590.47
  5. Step 5: Solve for x
    x = 2,760,654,590.47/64,201.70
  6. Step 6: Final answer
    x = 42,999.71

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1.5x scale

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.