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Finding the Fourth Proportional to 70,447.58, 97,217.22 and 38,617.82

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Solution

The fourth proportional to 70,447.58, 97,217.22 and 38,617.82 is: 53,292.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,447.58 : 97,217.22 = 38,617.82 : x
  2. Step 2: Convert to fraction form
    70,447.58/97,217.22 = 38,617.82/x
  3. Step 3: Cross multiply
    70,447.58x = 97,217.22 × 38,617.82
  4. Step 4: Simplify right side
    70,447.58x = 3,754,317,102.86
  5. Step 5: Solve for x
    x = 3,754,317,102.86/70,447.58
  6. Step 6: Final answer
    x = 53,292.35

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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.