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Finding the Fourth Proportional to 31,079.55, 46,605.65 and 8,887.88

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Solution

The fourth proportional to 31,079.55, 46,605.65 and 8,887.88 is: 13,327.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,079.55 : 46,605.65 = 8,887.88 : x
  2. Step 2: Convert to fraction form
    31,079.55/46,605.65 = 8,887.88/x
  3. Step 3: Cross multiply
    31,079.55x = 46,605.65 × 8,887.88
  4. Step 4: Simplify right side
    31,079.55x = 414,225,309.43
  5. Step 5: Solve for x
    x = 414,225,309.43/31,079.55
  6. Step 6: Final answer
    x = 13,327.91

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1.5x scale

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.