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Finding the Fourth Proportional to 7,040.55, 9,713.19 and 4,522.31

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Solution

The fourth proportional to 7,040.55, 9,713.19 and 4,522.31 is: 6,239.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,040.55 : 9,713.19 = 4,522.31 : x
  2. Step 2: Convert to fraction form
    7,040.55/9,713.19 = 4,522.31/x
  3. Step 3: Cross multiply
    7,040.55x = 9,713.19 × 4,522.31
  4. Step 4: Simplify right side
    7,040.55x = 43,926,007.70
  5. Step 5: Solve for x
    x = 43,926,007.70/7,040.55
  6. Step 6: Final answer
    x = 6,239.00

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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.