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Finding the Fourth Proportional to 70,167.40, 96,832.38 and 38,338.30

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Solution

The fourth proportional to 70,167.40, 96,832.38 and 38,338.30 is: 52,907.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,167.40 : 96,832.38 = 38,338.30 : x
  2. Step 2: Convert to fraction form
    70,167.40/96,832.38 = 38,338.30/x
  3. Step 3: Cross multiply
    70,167.40x = 96,832.38 × 38,338.30
  4. Step 4: Simplify right side
    70,167.40x = 3,712,388,834.15
  5. Step 5: Solve for x
    x = 3,712,388,834.15/70,167.40
  6. Step 6: Final answer
    x = 52,907.60

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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.