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Finding the Fourth Proportional to 64,296.30, 88,714.52 and 38,806.80

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Solution

The fourth proportional to 64,296.30, 88,714.52 and 38,806.80 is: 53,544.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,296.30 : 88,714.52 = 38,806.80 : x
  2. Step 2: Convert to fraction form
    64,296.30/88,714.52 = 38,806.80/x
  3. Step 3: Cross multiply
    64,296.30x = 88,714.52 × 38,806.80
  4. Step 4: Simplify right side
    64,296.30x = 3,442,726,634.74
  5. Step 5: Solve for x
    x = 3,442,726,634.74/64,296.30
  6. Step 6: Final answer
    x = 53,544.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.