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Finding the Fourth Proportional to 11,833.60, 17,750.40 and 5,252.80

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Solution

The fourth proportional to 11,833.60, 17,750.40 and 5,252.80 is: 7,879.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,833.60 : 17,750.40 = 5,252.80 : x
  2. Step 2: Convert to fraction form
    11,833.60/17,750.40 = 5,252.80/x
  3. Step 3: Cross multiply
    11,833.60x = 17,750.40 × 5,252.80
  4. Step 4: Simplify right side
    11,833.60x = 93,239,301.12
  5. Step 5: Solve for x
    x = 93,239,301.12/11,833.60
  6. Step 6: Final answer
    x = 7,879.20

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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.