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Finding the Fourth Proportional to 70,373.78, 97,115.81 and 38,542.76

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Solution

The fourth proportional to 70,373.78, 97,115.81 and 38,542.76 is: 53,189.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,373.78 : 97,115.81 = 38,542.76 : x
  2. Step 2: Convert to fraction form
    70,373.78/97,115.81 = 38,542.76/x
  3. Step 3: Cross multiply
    70,373.78x = 97,115.81 × 38,542.76
  4. Step 4: Simplify right side
    70,373.78x = 3,743,111,357.04
  5. Step 5: Solve for x
    x = 3,743,111,357.04/70,373.78
  6. Step 6: Final answer
    x = 53,189.01

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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.