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Finding the Fourth Proportional to 7,047.27, 9,724.55 and 4,214.08

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Solution

The fourth proportional to 7,047.27, 9,724.55 and 4,214.08 is: 5,815.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,047.27 : 9,724.55 = 4,214.08 : x
  2. Step 2: Convert to fraction form
    7,047.27/9,724.55 = 4,214.08/x
  3. Step 3: Cross multiply
    7,047.27x = 9,724.55 × 4,214.08
  4. Step 4: Simplify right side
    7,047.27x = 40,980,031.66
  5. Step 5: Solve for x
    x = 40,980,031.66/7,047.27
  6. Step 6: Final answer
    x = 5,815.02

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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.