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Finding the Fourth Proportional to 7,752.20, 11,670.47 and 7,063.30

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Solution

The fourth proportional to 7,752.20, 11,670.47 and 7,063.30 is: 10,633.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,752.20 : 11,670.47 = 7,063.30 : x
  2. Step 2: Convert to fraction form
    7,752.20/11,670.47 = 7,063.30/x
  3. Step 3: Cross multiply
    7,752.20x = 11,670.47 × 7,063.30
  4. Step 4: Simplify right side
    7,752.20x = 82,432,030.75
  5. Step 5: Solve for x
    x = 82,432,030.75/7,752.20
  6. Step 6: Final answer
    x = 10,633.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.