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Finding the Fourth Proportional to 5,809.10, 8,713.65 and 1,648.70

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Solution

The fourth proportional to 5,809.10, 8,713.65 and 1,648.70 is: 2,473.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,809.10 : 8,713.65 = 1,648.70 : x
  2. Step 2: Convert to fraction form
    5,809.10/8,713.65 = 1,648.70/x
  3. Step 3: Cross multiply
    5,809.10x = 8,713.65 × 1,648.70
  4. Step 4: Simplify right side
    5,809.10x = 14,366,194.76
  5. Step 5: Solve for x
    x = 14,366,194.76/5,809.10
  6. Step 6: Final answer
    x = 2,473.05

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Double scale
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Similar ratio
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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.