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Finding the Fourth Proportional to 3,717.54, 5,130.13 and 2,061.54

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Solution

The fourth proportional to 3,717.54, 5,130.13 and 2,061.54 is: 2,844.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,717.54 : 5,130.13 = 2,061.54 : x
  2. Step 2: Convert to fraction form
    3,717.54/5,130.13 = 2,061.54/x
  3. Step 3: Cross multiply
    3,717.54x = 5,130.13 × 2,061.54
  4. Step 4: Simplify right side
    3,717.54x = 10,575,968.20
  5. Step 5: Solve for x
    x = 10,575,968.20/3,717.54
  6. Step 6: Final answer
    x = 2,844.88

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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.