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Finding the Fourth Proportional to 15,244.80, 22,881.60 and 9,412.80

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Solution

The fourth proportional to 15,244.80, 22,881.60 and 9,412.80 is: 14,128.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,244.80 : 22,881.60 = 9,412.80 : x
  2. Step 2: Convert to fraction form
    15,244.80/22,881.60 = 9,412.80/x
  3. Step 3: Cross multiply
    15,244.80x = 22,881.60 × 9,412.80
  4. Step 4: Simplify right side
    15,244.80x = 215,379,924.48
  5. Step 5: Solve for x
    x = 215,379,924.48/15,244.80
  6. Step 6: Final answer
    x = 14,128.09

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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.