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Finding the Fourth Proportional to 70,689.88, 97,552.23 and 40,475.66

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Solution

The fourth proportional to 70,689.88, 97,552.23 and 40,475.66 is: 55,856.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,689.88 : 97,552.23 = 40,475.66 : x
  2. Step 2: Convert to fraction form
    70,689.88/97,552.23 = 40,475.66/x
  3. Step 3: Cross multiply
    70,689.88x = 97,552.23 × 40,475.66
  4. Step 4: Simplify right side
    70,689.88x = 3,948,490,893.72
  5. Step 5: Solve for x
    x = 3,948,490,893.72/70,689.88
  6. Step 6: Final answer
    x = 55,856.53

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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.