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Finding the Fourth Proportional to 8,566.51, 12,851.15 and 2,642.01

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Solution

The fourth proportional to 8,566.51, 12,851.15 and 2,642.01 is: 3,963.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,566.51 : 12,851.15 = 2,642.01 : x
  2. Step 2: Convert to fraction form
    8,566.51/12,851.15 = 2,642.01/x
  3. Step 3: Cross multiply
    8,566.51x = 12,851.15 × 2,642.01
  4. Step 4: Simplify right side
    8,566.51x = 33,952,866.81
  5. Step 5: Solve for x
    x = 33,952,866.81/8,566.51
  6. Step 6: Final answer
    x = 3,963.44

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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.