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Finding the Fourth Proportional to 58,494.64, 80,722.30 and 31,637.12

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Solution

The fourth proportional to 58,494.64, 80,722.30 and 31,637.12 is: 43,659.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,494.64 : 80,722.30 = 31,637.12 : x
  2. Step 2: Convert to fraction form
    58,494.64/80,722.30 = 31,637.12/x
  3. Step 3: Cross multiply
    58,494.64x = 80,722.30 × 31,637.12
  4. Step 4: Simplify right side
    58,494.64x = 2,553,821,091.78
  5. Step 5: Solve for x
    x = 2,553,821,091.78/58,494.64
  6. Step 6: Final answer
    x = 43,659.06

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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.