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Finding the Fourth Proportional to 11,223.60, 16,810.92 and 9,253.68

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Solution

The fourth proportional to 11,223.60, 16,810.92 and 9,253.68 is: 13,860.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,223.60 : 16,810.92 = 9,253.68 : x
  2. Step 2: Convert to fraction form
    11,223.60/16,810.92 = 9,253.68/x
  3. Step 3: Cross multiply
    11,223.60x = 16,810.92 × 9,253.68
  4. Step 4: Simplify right side
    11,223.60x = 155,562,874.19
  5. Step 5: Solve for x
    x = 155,562,874.19/11,223.60
  6. Step 6: Final answer
    x = 13,860.34

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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.