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Finding the Fourth Proportional to 2,592.95, 3,578.60 and 1,545

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Solution

The fourth proportional to 2,592.95, 3,578.60 and 1,545 is: 2,132.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,592.95 : 3,578.60 = 1,545 : x
  2. Step 2: Convert to fraction form
    2,592.95/3,578.60 = 1,545/x
  3. Step 3: Cross multiply
    2,592.95x = 3,578.60 × 1,545
  4. Step 4: Simplify right side
    2,592.95x = 5,528,929.28
  5. Step 5: Solve for x
    x = 5,528,929.28/2,592.95
  6. Step 6: Final answer
    x = 2,132.30

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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.