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Finding the Fourth Proportional to 7,265.12, 10,805.41 and 7,125.68

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Solution

The fourth proportional to 7,265.12, 10,805.41 and 7,125.68 is: 10,598.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,265.12 : 10,805.41 = 7,125.68 : x
  2. Step 2: Convert to fraction form
    7,265.12/10,805.41 = 7,125.68/x
  3. Step 3: Cross multiply
    7,265.12x = 10,805.41 × 7,125.68
  4. Step 4: Simplify right side
    7,265.12x = 76,995,893.93
  5. Step 5: Solve for x
    x = 76,995,893.93/7,265.12
  6. Step 6: Final answer
    x = 10,598.02

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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.