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Finding the Fourth Proportional to 8,785.54, 13,159.86 and 5,999.16

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Solution

The fourth proportional to 8,785.54, 13,159.86 and 5,999.16 is: 8,986.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,785.54 : 13,159.86 = 5,999.16 : x
  2. Step 2: Convert to fraction form
    8,785.54/13,159.86 = 5,999.16/x
  3. Step 3: Cross multiply
    8,785.54x = 13,159.86 × 5,999.16
  4. Step 4: Simplify right side
    8,785.54x = 78,948,105.72
  5. Step 5: Solve for x
    x = 78,948,105.72/8,785.54
  6. Step 6: Final answer
    x = 8,986.14

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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.