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Finding the Fourth Proportional to 70,553.59, 97,363.87 and 38,722.57

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Solution

The fourth proportional to 70,553.59, 97,363.87 and 38,722.57 is: 53,437.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,553.59 : 97,363.87 = 38,722.57 : x
  2. Step 2: Convert to fraction form
    70,553.59/97,363.87 = 38,722.57/x
  3. Step 3: Cross multiply
    70,553.59x = 97,363.87 × 38,722.57
  4. Step 4: Simplify right side
    70,553.59x = 3,770,179,271.55
  5. Step 5: Solve for x
    x = 3,770,179,271.55/70,553.59
  6. Step 6: Final answer
    x = 53,437.10

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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.