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Finding the Fourth Proportional to 70,385.70, 97,133.54 and 38,552.57

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Solution

The fourth proportional to 70,385.70, 97,133.54 and 38,552.57 is: 53,203.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,385.70 : 97,133.54 = 38,552.57 : x
  2. Step 2: Convert to fraction form
    70,385.70/97,133.54 = 38,552.57/x
  3. Step 3: Cross multiply
    70,385.70x = 97,133.54 × 38,552.57
  4. Step 4: Simplify right side
    70,385.70x = 3,744,747,600.20
  5. Step 5: Solve for x
    x = 3,744,747,600.20/70,385.70
  6. Step 6: Final answer
    x = 53,203.24

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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.