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Finding the Fourth Proportional to 58,580.16, 80,840.84 and 31,722.68

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Solution

The fourth proportional to 58,580.16, 80,840.84 and 31,722.68 is: 43,777.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,580.16 : 80,840.84 = 31,722.68 : x
  2. Step 2: Convert to fraction form
    58,580.16/80,840.84 = 31,722.68/x
  3. Step 3: Cross multiply
    58,580.16x = 80,840.84 × 31,722.68
  4. Step 4: Simplify right side
    58,580.16x = 2,564,488,098.25
  5. Step 5: Solve for x
    x = 2,564,488,098.25/58,580.16
  6. Step 6: Final answer
    x = 43,777.42

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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.