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Finding the Fourth Proportional to 58,720.93, 81,034.58 and 31,863.38

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Solution

The fourth proportional to 58,720.93, 81,034.58 and 31,863.38 is: 43,971.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,720.93 : 81,034.58 = 31,863.38 : x
  2. Step 2: Convert to fraction form
    58,720.93/81,034.58 = 31,863.38/x
  3. Step 3: Cross multiply
    58,720.93x = 81,034.58 × 31,863.38
  4. Step 4: Simplify right side
    58,720.93x = 2,582,035,290.17
  5. Step 5: Solve for x
    x = 2,582,035,290.17/58,720.93
  6. Step 6: Final answer
    x = 43,971.30

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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.