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Finding the Fourth Proportional to 5,710.56, 8,548.56 and 5,278.56

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Solution

The fourth proportional to 5,710.56, 8,548.56 and 5,278.56 is: 7,901.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,710.56 : 8,548.56 = 5,278.56 : x
  2. Step 2: Convert to fraction form
    5,710.56/8,548.56 = 5,278.56/x
  3. Step 3: Cross multiply
    5,710.56x = 8,548.56 × 5,278.56
  4. Step 4: Simplify right side
    5,710.56x = 45,124,086.87
  5. Step 5: Solve for x
    x = 45,124,086.87/5,710.56
  6. Step 6: Final answer
    x = 7,901.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.