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Finding the Fourth Proportional to 69,897.60, 96,459.84 and 38,067.12

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Solution

The fourth proportional to 69,897.60, 96,459.84 and 38,067.12 is: 52,533.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,897.60 : 96,459.84 = 38,067.12 : x
  2. Step 2: Convert to fraction form
    69,897.60/96,459.84 = 38,067.12/x
  3. Step 3: Cross multiply
    69,897.60x = 96,459.84 × 38,067.12
  4. Step 4: Simplify right side
    69,897.60x = 3,671,948,304.46
  5. Step 5: Solve for x
    x = 3,671,948,304.46/69,897.60
  6. Step 6: Final answer
    x = 52,533.25

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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.