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Finding the Fourth Proportional to 57,574.80, 79,451.76 and 32,081.28

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Solution

The fourth proportional to 57,574.80, 79,451.76 and 32,081.28 is: 44,271.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,574.80 : 79,451.76 = 32,081.28 : x
  2. Step 2: Convert to fraction form
    57,574.80/79,451.76 = 32,081.28/x
  3. Step 3: Cross multiply
    57,574.80x = 79,451.76 × 32,081.28
  4. Step 4: Simplify right side
    57,574.80x = 2,548,914,159.05
  5. Step 5: Solve for x
    x = 2,548,914,159.05/57,574.80
  6. Step 6: Final answer
    x = 44,271.35

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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.