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Finding the Fourth Proportional to 5,907.40, 8,861.10 and 5,542.90

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Solution

The fourth proportional to 5,907.40, 8,861.10 and 5,542.90 is: 8,314.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,907.40 : 8,861.10 = 5,542.90 : x
  2. Step 2: Convert to fraction form
    5,907.40/8,861.10 = 5,542.90/x
  3. Step 3: Cross multiply
    5,907.40x = 8,861.10 × 5,542.90
  4. Step 4: Simplify right side
    5,907.40x = 49,116,191.19
  5. Step 5: Solve for x
    x = 49,116,191.19/5,907.40
  6. Step 6: Final answer
    x = 8,314.35

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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.