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Finding the Fourth Proportional to 70,460.80, 97,242.03 and 38,635.90

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Solution

The fourth proportional to 70,460.80, 97,242.03 and 38,635.90 is: 53,320.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,460.80 : 97,242.03 = 38,635.90 : x
  2. Step 2: Convert to fraction form
    70,460.80/97,242.03 = 38,635.90/x
  3. Step 3: Cross multiply
    70,460.80x = 97,242.03 × 38,635.90
  4. Step 4: Simplify right side
    70,460.80x = 3,757,033,346.88
  5. Step 5: Solve for x
    x = 3,757,033,346.88/70,460.80
  6. Step 6: Final answer
    x = 53,320.90

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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.