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Finding the Fourth Proportional to 2,916.94, 4,025.28 and 1,737.40

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Solution

The fourth proportional to 2,916.94, 4,025.28 and 1,737.40 is: 2,397.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,916.94 : 4,025.28 = 1,737.40 : x
  2. Step 2: Convert to fraction form
    2,916.94/4,025.28 = 1,737.40/x
  3. Step 3: Cross multiply
    2,916.94x = 4,025.28 × 1,737.40
  4. Step 4: Simplify right side
    2,916.94x = 6,993,521.47
  5. Step 5: Solve for x
    x = 6,993,521.47/2,916.94
  6. Step 6: Final answer
    x = 2,397.55

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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.