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Finding the Fourth Proportional to 4,291.16, 5,921.64 and 2,428.16

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Solution

The fourth proportional to 4,291.16, 5,921.64 and 2,428.16 is: 3,350.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,291.16 : 5,921.64 = 2,428.16 : x
  2. Step 2: Convert to fraction form
    4,291.16/5,921.64 = 2,428.16/x
  3. Step 3: Cross multiply
    4,291.16x = 5,921.64 × 2,428.16
  4. Step 4: Simplify right side
    4,291.16x = 14,378,689.38
  5. Step 5: Solve for x
    x = 14,378,689.38/4,291.16
  6. Step 6: Final answer
    x = 3,350.77

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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.