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Finding the Fourth Proportional to 70,448.59, 97,221.41 and 38,617.57

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Solution

The fourth proportional to 70,448.59, 97,221.41 and 38,617.57 is: 53,293.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,448.59 : 97,221.41 = 38,617.57 : x
  2. Step 2: Convert to fraction form
    70,448.59/97,221.41 = 38,617.57/x
  3. Step 3: Cross multiply
    70,448.59x = 97,221.41 × 38,617.57
  4. Step 4: Simplify right side
    70,448.59x = 3,754,454,606.17
  5. Step 5: Solve for x
    x = 3,754,454,606.17/70,448.59
  6. Step 6: Final answer
    x = 53,293.54

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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.