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Finding the Fourth Proportional to 7,265.02, 9,960.43 and 7,133.80

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Solution

The fourth proportional to 7,265.02, 9,960.43 and 7,133.80 is: 9,780.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,265.02 : 9,960.43 = 7,133.80 : x
  2. Step 2: Convert to fraction form
    7,265.02/9,960.43 = 7,133.80/x
  3. Step 3: Cross multiply
    7,265.02x = 9,960.43 × 7,133.80
  4. Step 4: Simplify right side
    7,265.02x = 71,055,715.53
  5. Step 5: Solve for x
    x = 71,055,715.53/7,265.02
  6. Step 6: Final answer
    x = 9,780.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.