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Finding the Fourth Proportional to 5,927.88, 8,181.54 and 4,931.88

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Solution

The fourth proportional to 5,927.88, 8,181.54 and 4,931.88 is: 6,806.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,927.88 : 8,181.54 = 4,931.88 : x
  2. Step 2: Convert to fraction form
    5,927.88/8,181.54 = 4,931.88/x
  3. Step 3: Cross multiply
    5,927.88x = 8,181.54 × 4,931.88
  4. Step 4: Simplify right side
    5,927.88x = 40,350,373.50
  5. Step 5: Solve for x
    x = 40,350,373.50/5,927.88
  6. Step 6: Final answer
    x = 6,806.88

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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.