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Finding the Fourth Proportional to 6,652.51, 9,981.16 and 2,851.56

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Solution

The fourth proportional to 6,652.51, 9,981.16 and 2,851.56 is: 4,278.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,652.51 : 9,981.16 = 2,851.56 : x
  2. Step 2: Convert to fraction form
    6,652.51/9,981.16 = 2,851.56/x
  3. Step 3: Cross multiply
    6,652.51x = 9,981.16 × 2,851.56
  4. Step 4: Simplify right side
    6,652.51x = 28,461,869.48
  5. Step 5: Solve for x
    x = 28,461,869.48/6,652.51
  6. Step 6: Final answer
    x = 4,278.37

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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.