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Finding the Fourth Proportional to 71,870.85, 107,801.24 and 26,883.63

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Solution

The fourth proportional to 71,870.85, 107,801.24 and 26,883.63 is: 40,323.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,870.85 : 107,801.24 = 26,883.63 : x
  2. Step 2: Convert to fraction form
    71,870.85/107,801.24 = 26,883.63/x
  3. Step 3: Cross multiply
    71,870.85x = 107,801.24 × 26,883.63
  4. Step 4: Simplify right side
    71,870.85x = 2,898,088,515.28
  5. Step 5: Solve for x
    x = 2,898,088,515.28/71,870.85
  6. Step 6: Final answer
    x = 40,323.56

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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.