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Finding the Fourth Proportional to 57,689.36, 79,566.52 and 36,460.88

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Solution

The fourth proportional to 57,689.36, 79,566.52 and 36,460.88 is: 50,287.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,689.36 : 79,566.52 = 36,460.88 : x
  2. Step 2: Convert to fraction form
    57,689.36/79,566.52 = 36,460.88/x
  3. Step 3: Cross multiply
    57,689.36x = 79,566.52 × 36,460.88
  4. Step 4: Simplify right side
    57,689.36x = 2,901,065,337.74
  5. Step 5: Solve for x
    x = 2,901,065,337.74/57,689.36
  6. Step 6: Final answer
    x = 50,287.70

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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.