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Finding the Fourth Proportional to 5,256.88, 7,254.64 and 2,899.20

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Solution

The fourth proportional to 5,256.88, 7,254.64 and 2,899.20 is: 4,000.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,256.88 : 7,254.64 = 2,899.20 : x
  2. Step 2: Convert to fraction form
    5,256.88/7,254.64 = 2,899.20/x
  3. Step 3: Cross multiply
    5,256.88x = 7,254.64 × 2,899.20
  4. Step 4: Simplify right side
    5,256.88x = 21,032,652.29
  5. Step 5: Solve for x
    x = 21,032,652.29/5,256.88
  6. Step 6: Final answer
    x = 4,000.98

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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.