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Finding the Fourth Proportional to 70,291.97, 105,427.13 and 22,906.95

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Solution

The fourth proportional to 70,291.97, 105,427.13 and 22,906.95 is: 34,356.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,291.97 : 105,427.13 = 22,906.95 : x
  2. Step 2: Convert to fraction form
    70,291.97/105,427.13 = 22,906.95/x
  3. Step 3: Cross multiply
    70,291.97x = 105,427.13 × 22,906.95
  4. Step 4: Simplify right side
    70,291.97x = 2,415,013,995.55
  5. Step 5: Solve for x
    x = 2,415,013,995.55/70,291.97
  6. Step 6: Final answer
    x = 34,356.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.