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Finding the Fourth Proportional to 63,055.71, 94,642.61 and 31,912.83

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Solution

The fourth proportional to 63,055.71, 94,642.61 and 31,912.83 is: 47,899.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,055.71 : 94,642.61 = 31,912.83 : x
  2. Step 2: Convert to fraction form
    63,055.71/94,642.61 = 31,912.83/x
  3. Step 3: Cross multiply
    63,055.71x = 94,642.61 × 31,912.83
  4. Step 4: Simplify right side
    63,055.71x = 3,020,313,364.12
  5. Step 5: Solve for x
    x = 3,020,313,364.12/63,055.71
  6. Step 6: Final answer
    x = 47,899.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.