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Finding the Fourth Proportional to 8,856.63, 13,260.11 and 4,687.22

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Solution

The fourth proportional to 8,856.63, 13,260.11 and 4,687.22 is: 7,017.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,856.63 : 13,260.11 = 4,687.22 : x
  2. Step 2: Convert to fraction form
    8,856.63/13,260.11 = 4,687.22/x
  3. Step 3: Cross multiply
    8,856.63x = 13,260.11 × 4,687.22
  4. Step 4: Simplify right side
    8,856.63x = 62,152,963.06
  5. Step 5: Solve for x
    x = 62,152,963.06/8,856.63
  6. Step 6: Final answer
    x = 7,017.68

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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.