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Finding the Fourth Proportional to 31,589.79, 43,591.93 and 17,442.93

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Solution

The fourth proportional to 31,589.79, 43,591.93 and 17,442.93 is: 24,070.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,589.79 : 43,591.93 = 17,442.93 : x
  2. Step 2: Convert to fraction form
    31,589.79/43,591.93 = 17,442.93/x
  3. Step 3: Cross multiply
    31,589.79x = 43,591.93 × 17,442.93
  4. Step 4: Simplify right side
    31,589.79x = 760,370,983.55
  5. Step 5: Solve for x
    x = 760,370,983.55/31,589.79
  6. Step 6: Final answer
    x = 24,070.15

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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.