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Finding the Fourth Proportional to 58,597.64, 80,864.70 and 31,740.08

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Solution

The fourth proportional to 58,597.64, 80,864.70 and 31,740.08 is: 43,801.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,597.64 : 80,864.70 = 31,740.08 : x
  2. Step 2: Convert to fraction form
    58,597.64/80,864.70 = 31,740.08/x
  3. Step 3: Cross multiply
    58,597.64x = 80,864.70 × 31,740.08
  4. Step 4: Simplify right side
    58,597.64x = 2,566,651,642.85
  5. Step 5: Solve for x
    x = 2,566,651,642.85/58,597.64
  6. Step 6: Final answer
    x = 43,801.28

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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.