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Finding the Fourth Proportional to 31,046.61, 46,570.35 and 8,859.99

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Solution

The fourth proportional to 31,046.61, 46,570.35 and 8,859.99 is: 13,290.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,046.61 : 46,570.35 = 8,859.99 : x
  2. Step 2: Convert to fraction form
    31,046.61/46,570.35 = 8,859.99/x
  3. Step 3: Cross multiply
    31,046.61x = 46,570.35 × 8,859.99
  4. Step 4: Simplify right side
    31,046.61x = 412,612,868.52
  5. Step 5: Solve for x
    x = 412,612,868.52/31,046.61
  6. Step 6: Final answer
    x = 13,290.11

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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.