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Finding the Fourth Proportional to 58,659.28, 80,948.96 and 31,801.28

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Solution

The fourth proportional to 58,659.28, 80,948.96 and 31,801.28 is: 43,885.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,659.28 : 80,948.96 = 31,801.28 : x
  2. Step 2: Convert to fraction form
    58,659.28/80,948.96 = 31,801.28/x
  3. Step 3: Cross multiply
    58,659.28x = 80,948.96 × 31,801.28
  4. Step 4: Simplify right side
    58,659.28x = 2,574,280,542.67
  5. Step 5: Solve for x
    x = 2,574,280,542.67/58,659.28
  6. Step 6: Final answer
    x = 43,885.31

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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.