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Finding the Fourth Proportional to 1,848.13, 2,769.80 and 751.22

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Solution

The fourth proportional to 1,848.13, 2,769.80 and 751.22 is: 1,125.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,848.13 : 2,769.80 = 751.22 : x
  2. Step 2: Convert to fraction form
    1,848.13/2,769.80 = 751.22/x
  3. Step 3: Cross multiply
    1,848.13x = 2,769.80 × 751.22
  4. Step 4: Simplify right side
    1,848.13x = 2,080,729.16
  5. Step 5: Solve for x
    x = 2,080,729.16/1,848.13
  6. Step 6: Final answer
    x = 1,125.86

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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.