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Finding the Fourth Proportional to 70,069.38, 96,698.88 and 39,453.02

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Solution

The fourth proportional to 70,069.38, 96,698.88 and 39,453.02 is: 54,446.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,069.38 : 96,698.88 = 39,453.02 : x
  2. Step 2: Convert to fraction form
    70,069.38/96,698.88 = 39,453.02/x
  3. Step 3: Cross multiply
    70,069.38x = 96,698.88 × 39,453.02
  4. Step 4: Simplify right side
    70,069.38x = 3,815,062,363.12
  5. Step 5: Solve for x
    x = 3,815,062,363.12/70,069.38
  6. Step 6: Final answer
    x = 54,446.93

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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.