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Finding the Fourth Proportional to 57,449.48, 79,279.16 and 31,954.98

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Solution

The fourth proportional to 57,449.48, 79,279.16 and 31,954.98 is: 44,097.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,449.48 : 79,279.16 = 31,954.98 : x
  2. Step 2: Convert to fraction form
    57,449.48/79,279.16 = 31,954.98/x
  3. Step 3: Cross multiply
    57,449.48x = 79,279.16 × 31,954.98
  4. Step 4: Simplify right side
    57,449.48x = 2,533,363,972.22
  5. Step 5: Solve for x
    x = 2,533,363,972.22/57,449.48
  6. Step 6: Final answer
    x = 44,097.25

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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.