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Finding the Fourth Proportional to 7,251.56, 10,007.40 and 4,064.99

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Solution

The fourth proportional to 7,251.56, 10,007.40 and 4,064.99 is: 5,609.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,251.56 : 10,007.40 = 4,064.99 : x
  2. Step 2: Convert to fraction form
    7,251.56/10,007.40 = 4,064.99/x
  3. Step 3: Cross multiply
    7,251.56x = 10,007.40 × 4,064.99
  4. Step 4: Simplify right side
    7,251.56x = 40,679,980.93
  5. Step 5: Solve for x
    x = 40,679,980.93/7,251.56
  6. Step 6: Final answer
    x = 5,609.82

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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.