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Finding the Fourth Proportional to 7,882.56, 10,877.10 and 4,345.56

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Solution

The fourth proportional to 7,882.56, 10,877.10 and 4,345.56 is: 5,996.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,882.56 : 10,877.10 = 4,345.56 : x
  2. Step 2: Convert to fraction form
    7,882.56/10,877.10 = 4,345.56/x
  3. Step 3: Cross multiply
    7,882.56x = 10,877.10 × 4,345.56
  4. Step 4: Simplify right side
    7,882.56x = 47,267,090.68
  5. Step 5: Solve for x
    x = 47,267,090.68/7,882.56
  6. Step 6: Final answer
    x = 5,996.41

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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.