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Finding the Fourth Proportional to 10,753.88, 16,113.54 and 8,887.64

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Solution

The fourth proportional to 10,753.88, 16,113.54 and 8,887.64 is: 13,317.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,753.88 : 16,113.54 = 8,887.64 : x
  2. Step 2: Convert to fraction form
    10,753.88/16,113.54 = 8,887.64/x
  3. Step 3: Cross multiply
    10,753.88x = 16,113.54 × 8,887.64
  4. Step 4: Simplify right side
    10,753.88x = 143,211,342.65
  5. Step 5: Solve for x
    x = 143,211,342.65/10,753.88
  6. Step 6: Final answer
    x = 13,317.18

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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.