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Finding the Fourth Proportional to 8,887.92, 13,340.52 and 4,274.16

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Solution

The fourth proportional to 8,887.92, 13,340.52 and 4,274.16 is: 6,415.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,887.92 : 13,340.52 = 4,274.16 : x
  2. Step 2: Convert to fraction form
    8,887.92/13,340.52 = 4,274.16/x
  3. Step 3: Cross multiply
    8,887.92x = 13,340.52 × 4,274.16
  4. Step 4: Simplify right side
    8,887.92x = 57,019,516.96
  5. Step 5: Solve for x
    x = 57,019,516.96/8,887.92
  6. Step 6: Final answer
    x = 6,415.39

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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.