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Finding the Fourth Proportional to 8,961.93, 13,424.40 and 5,252.90

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Solution

The fourth proportional to 8,961.93, 13,424.40 and 5,252.90 is: 7,868.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,961.93 : 13,424.40 = 5,252.90 : x
  2. Step 2: Convert to fraction form
    8,961.93/13,424.40 = 5,252.90/x
  3. Step 3: Cross multiply
    8,961.93x = 13,424.40 × 5,252.90
  4. Step 4: Simplify right side
    8,961.93x = 70,516,963.64
  5. Step 5: Solve for x
    x = 70,516,963.64/8,961.93
  6. Step 6: Final answer
    x = 7,868.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.