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Finding the Fourth Proportional to 8,000.60, 11,042.80 and 4,859.42

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Solution

The fourth proportional to 8,000.60, 11,042.80 and 4,859.42 is: 6,707.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,000.60 : 11,042.80 = 4,859.42 : x
  2. Step 2: Convert to fraction form
    8,000.60/11,042.80 = 4,859.42/x
  3. Step 3: Cross multiply
    8,000.60x = 11,042.80 × 4,859.42
  4. Step 4: Simplify right side
    8,000.60x = 53,661,535.81
  5. Step 5: Solve for x
    x = 53,661,535.81/8,000.60
  6. Step 6: Final answer
    x = 6,707.19

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Half scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.