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Finding the Fourth Proportional to 5,689.87, 8,534.80 and 1,794.58

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Solution

The fourth proportional to 5,689.87, 8,534.80 and 1,794.58 is: 2,691.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,689.87 : 8,534.80 = 1,794.58 : x
  2. Step 2: Convert to fraction form
    5,689.87/8,534.80 = 1,794.58/x
  3. Step 3: Cross multiply
    5,689.87x = 8,534.80 × 1,794.58
  4. Step 4: Simplify right side
    5,689.87x = 15,316,362.29
  5. Step 5: Solve for x
    x = 15,316,362.29/5,689.87
  6. Step 6: Final answer
    x = 2,691.87

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Half scale
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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.