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Finding the Fourth Proportional to 7,047.59, 9,723.40 and 4,062.78

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Solution

The fourth proportional to 7,047.59, 9,723.40 and 4,062.78 is: 5,605.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,047.59 : 9,723.40 = 4,062.78 : x
  2. Step 2: Convert to fraction form
    7,047.59/9,723.40 = 4,062.78/x
  3. Step 3: Cross multiply
    7,047.59x = 9,723.40 × 4,062.78
  4. Step 4: Simplify right side
    7,047.59x = 39,504,024.90
  5. Step 5: Solve for x
    x = 39,504,024.90/7,047.59
  6. Step 6: Final answer
    x = 5,605.33

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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.