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Finding the Fourth Proportional to 31,053.79, 46,581.09 and 8,867.15

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Solution

The fourth proportional to 31,053.79, 46,581.09 and 8,867.15 is: 13,300.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,053.79 : 46,581.09 = 8,867.15 : x
  2. Step 2: Convert to fraction form
    31,053.79/46,581.09 = 8,867.15/x
  3. Step 3: Cross multiply
    31,053.79x = 46,581.09 × 8,867.15
  4. Step 4: Simplify right side
    31,053.79x = 413,041,512.19
  5. Step 5: Solve for x
    x = 413,041,512.19/31,053.79
  6. Step 6: Final answer
    x = 13,300.84

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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.