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Finding the Fourth Proportional to 3,464.16, 4,780.11 and 1,972.10

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Solution

The fourth proportional to 3,464.16, 4,780.11 and 1,972.10 is: 2,721.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,464.16 : 4,780.11 = 1,972.10 : x
  2. Step 2: Convert to fraction form
    3,464.16/4,780.11 = 1,972.10/x
  3. Step 3: Cross multiply
    3,464.16x = 4,780.11 × 1,972.10
  4. Step 4: Simplify right side
    3,464.16x = 9,426,874.28
  5. Step 5: Solve for x
    x = 9,426,874.28/3,464.16
  6. Step 6: Final answer
    x = 2,721.26

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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.