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Finding the Fourth Proportional to 7,065.44, 9,748.76 and 4,270.88

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Solution

The fourth proportional to 7,065.44, 9,748.76 and 4,270.88 is: 5,892.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,065.44 : 9,748.76 = 4,270.88 : x
  2. Step 2: Convert to fraction form
    7,065.44/9,748.76 = 4,270.88/x
  3. Step 3: Cross multiply
    7,065.44x = 9,748.76 × 4,270.88
  4. Step 4: Simplify right side
    7,065.44x = 41,635,784.11
  5. Step 5: Solve for x
    x = 41,635,784.11/7,065.44
  6. Step 6: Final answer
    x = 5,892.88

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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.