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Finding the Fourth Proportional to 11,700.80, 17,556.40 and 6,152.80

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Solution

The fourth proportional to 11,700.80, 17,556.40 and 6,152.80 is: 9,231.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,700.80 : 17,556.40 = 6,152.80 : x
  2. Step 2: Convert to fraction form
    11,700.80/17,556.40 = 6,152.80/x
  3. Step 3: Cross multiply
    11,700.80x = 17,556.40 × 6,152.80
  4. Step 4: Simplify right side
    11,700.80x = 108,021,017.92
  5. Step 5: Solve for x
    x = 108,021,017.92/11,700.80
  6. Step 6: Final answer
    x = 9,231.93

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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.