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Finding the Fourth Proportional to 8,574.42, 11,816.91 and 7,073.22

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Solution

The fourth proportional to 8,574.42, 11,816.91 and 7,073.22 is: 9,748.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,574.42 : 11,816.91 = 7,073.22 : x
  2. Step 2: Convert to fraction form
    8,574.42/11,816.91 = 7,073.22/x
  3. Step 3: Cross multiply
    8,574.42x = 11,816.91 × 7,073.22
  4. Step 4: Simplify right side
    8,574.42x = 83,583,604.15
  5. Step 5: Solve for x
    x = 83,583,604.15/8,574.42
  6. Step 6: Final answer
    x = 9,748.02

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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.