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Finding the Fourth Proportional to 7,617.95, 10,513.50 and 4,787.44

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Solution

The fourth proportional to 7,617.95, 10,513.50 and 4,787.44 is: 6,607.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,617.95 : 10,513.50 = 4,787.44 : x
  2. Step 2: Convert to fraction form
    7,617.95/10,513.50 = 4,787.44/x
  3. Step 3: Cross multiply
    7,617.95x = 10,513.50 × 4,787.44
  4. Step 4: Simplify right side
    7,617.95x = 50,332,706.20
  5. Step 5: Solve for x
    x = 50,332,706.20/7,617.95
  6. Step 6: Final answer
    x = 6,607.12

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1.5x scale

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.