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Finding the Fourth Proportional to 58,560.08, 80,791.16 and 38,428.16

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Solution

The fourth proportional to 58,560.08, 80,791.16 and 38,428.16 is: 53,016.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,560.08 : 80,791.16 = 38,428.16 : x
  2. Step 2: Convert to fraction form
    58,560.08/80,791.16 = 38,428.16/x
  3. Step 3: Cross multiply
    58,560.08x = 80,791.16 × 38,428.16
  4. Step 4: Simplify right side
    58,560.08x = 3,104,655,026.97
  5. Step 5: Solve for x
    x = 3,104,655,026.97/58,560.08
  6. Step 6: Final answer
    x = 53,016.58

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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.