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Finding the Fourth Proportional to 6,909.90, 10,368.90 and 2,527.80

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Solution

The fourth proportional to 6,909.90, 10,368.90 and 2,527.80 is: 3,793.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,909.90 : 10,368.90 = 2,527.80 : x
  2. Step 2: Convert to fraction form
    6,909.90/10,368.90 = 2,527.80/x
  3. Step 3: Cross multiply
    6,909.90x = 10,368.90 × 2,527.80
  4. Step 4: Simplify right side
    6,909.90x = 26,210,505.42
  5. Step 5: Solve for x
    x = 26,210,505.42/6,909.90
  6. Step 6: Final answer
    x = 3,793.18

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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.