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Finding the Fourth Proportional to 71,799.40, 107,699.74 and 25,052.20

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Solution

The fourth proportional to 71,799.40, 107,699.74 and 25,052.20 is: 37,578.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,799.40 : 107,699.74 = 25,052.20 : x
  2. Step 2: Convert to fraction form
    71,799.40/107,699.74 = 25,052.20/x
  3. Step 3: Cross multiply
    71,799.40x = 107,699.74 × 25,052.20
  4. Step 4: Simplify right side
    71,799.40x = 2,698,115,426.43
  5. Step 5: Solve for x
    x = 2,698,115,426.43/71,799.40
  6. Step 6: Final answer
    x = 37,578.52

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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.