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Finding the Fourth Proportional to 7,063.20, 9,752.40 and 6,188.40

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Solution

The fourth proportional to 7,063.20, 9,752.40 and 6,188.40 is: 8,544.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,063.20 : 9,752.40 = 6,188.40 : x
  2. Step 2: Convert to fraction form
    7,063.20/9,752.40 = 6,188.40/x
  3. Step 3: Cross multiply
    7,063.20x = 9,752.40 × 6,188.40
  4. Step 4: Simplify right side
    7,063.20x = 60,351,752.16
  5. Step 5: Solve for x
    x = 60,351,752.16/7,063.20
  6. Step 6: Final answer
    x = 8,544.53

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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.