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Finding the Fourth Proportional to 7,160.16, 10,660.02 and 7,125.51

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Solution

The fourth proportional to 7,160.16, 10,660.02 and 7,125.51 is: 10,608.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,160.16 : 10,660.02 = 7,125.51 : x
  2. Step 2: Convert to fraction form
    7,160.16/10,660.02 = 7,125.51/x
  3. Step 3: Cross multiply
    7,160.16x = 10,660.02 × 7,125.51
  4. Step 4: Simplify right side
    7,160.16x = 75,958,079.11
  5. Step 5: Solve for x
    x = 75,958,079.11/7,160.16
  6. Step 6: Final answer
    x = 10,608.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.