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Finding the Fourth Proportional to 7,061.44, 9,744.76 and 3,917.63

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Solution

The fourth proportional to 7,061.44, 9,744.76 and 3,917.63 is: 5,406.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,061.44 : 9,744.76 = 3,917.63 : x
  2. Step 2: Convert to fraction form
    7,061.44/9,744.76 = 3,917.63/x
  3. Step 3: Cross multiply
    7,061.44x = 9,744.76 × 3,917.63
  4. Step 4: Simplify right side
    7,061.44x = 38,176,364.12
  5. Step 5: Solve for x
    x = 38,176,364.12/7,061.44
  6. Step 6: Final answer
    x = 5,406.31

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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.