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Finding the Fourth Proportional to 71,023.98, 106,552.65 and 21,104.46

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Solution

The fourth proportional to 71,023.98, 106,552.65 and 21,104.46 is: 31,661.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,023.98 : 106,552.65 = 21,104.46 : x
  2. Step 2: Convert to fraction form
    71,023.98/106,552.65 = 21,104.46/x
  3. Step 3: Cross multiply
    71,023.98x = 106,552.65 × 21,104.46
  4. Step 4: Simplify right side
    71,023.98x = 2,248,736,139.82
  5. Step 5: Solve for x
    x = 2,248,736,139.82/71,023.98
  6. Step 6: Final answer
    x = 31,661.65

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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.