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Finding the Fourth Proportional to 2,875.95, 4,310.55 and 2,845.17

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Solution

The fourth proportional to 2,875.95, 4,310.55 and 2,845.17 is: 4,264.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,875.95 : 4,310.55 = 2,845.17 : x
  2. Step 2: Convert to fraction form
    2,875.95/4,310.55 = 2,845.17/x
  3. Step 3: Cross multiply
    2,875.95x = 4,310.55 × 2,845.17
  4. Step 4: Simplify right side
    2,875.95x = 12,264,247.54
  5. Step 5: Solve for x
    x = 12,264,247.54/2,875.95
  6. Step 6: Final answer
    x = 4,264.42

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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.