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Finding the Fourth Proportional to 58,851.80, 81,216.17 and 31,993.72

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Solution

The fourth proportional to 58,851.80, 81,216.17 and 31,993.72 is: 44,151.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,851.80 : 81,216.17 = 31,993.72 : x
  2. Step 2: Convert to fraction form
    58,851.80/81,216.17 = 31,993.72/x
  3. Step 3: Cross multiply
    58,851.80x = 81,216.17 × 31,993.72
  4. Step 4: Simplify right side
    58,851.80x = 2,598,407,159.42
  5. Step 5: Solve for x
    x = 2,598,407,159.42/58,851.80
  6. Step 6: Final answer
    x = 44,151.70

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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.