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Finding the Fourth Proportional to 2,475.06, 3,713.49 and 915.54

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Solution

The fourth proportional to 2,475.06, 3,713.49 and 915.54 is: 1,373.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,475.06 : 3,713.49 = 915.54 : x
  2. Step 2: Convert to fraction form
    2,475.06/3,713.49 = 915.54/x
  3. Step 3: Cross multiply
    2,475.06x = 3,713.49 × 915.54
  4. Step 4: Simplify right side
    2,475.06x = 3,399,848.63
  5. Step 5: Solve for x
    x = 3,399,848.63/2,475.06
  6. Step 6: Final answer
    x = 1,373.64

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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.