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Finding the Fourth Proportional to 7,159.74, 9,881.91 and 4,016.94

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Solution

The fourth proportional to 7,159.74, 9,881.91 and 4,016.94 is: 5,544.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,159.74 : 9,881.91 = 4,016.94 : x
  2. Step 2: Convert to fraction form
    7,159.74/9,881.91 = 4,016.94/x
  3. Step 3: Cross multiply
    7,159.74x = 9,881.91 × 4,016.94
  4. Step 4: Simplify right side
    7,159.74x = 39,695,039.56
  5. Step 5: Solve for x
    x = 39,695,039.56/7,159.74
  6. Step 6: Final answer
    x = 5,544.20

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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.