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Finding the Fourth Proportional to 70,690.88, 97,553.61 and 40,476.66

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Solution

The fourth proportional to 70,690.88, 97,553.61 and 40,476.66 is: 55,857.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,690.88 : 97,553.61 = 40,476.66 : x
  2. Step 2: Convert to fraction form
    70,690.88/97,553.61 = 40,476.66/x
  3. Step 3: Cross multiply
    70,690.88x = 97,553.61 × 40,476.66
  4. Step 4: Simplify right side
    70,690.88x = 3,948,644,303.74
  5. Step 5: Solve for x
    x = 3,948,644,303.74/70,690.88
  6. Step 6: Final answer
    x = 55,857.91

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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.