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Finding the Fourth Proportional to 7,158.64, 9,880.68 and 4,366.48

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Solution

The fourth proportional to 7,158.64, 9,880.68 and 4,366.48 is: 6,026.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,158.64 : 9,880.68 = 4,366.48 : x
  2. Step 2: Convert to fraction form
    7,158.64/9,880.68 = 4,366.48/x
  3. Step 3: Cross multiply
    7,158.64x = 9,880.68 × 4,366.48
  4. Step 4: Simplify right side
    7,158.64x = 43,143,791.61
  5. Step 5: Solve for x
    x = 43,143,791.61/7,158.64
  6. Step 6: Final answer
    x = 6,026.81

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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.