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Finding the Fourth Proportional to 1,848.12, 2,771.42 and 752.19

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Solution

The fourth proportional to 1,848.12, 2,771.42 and 752.19 is: 1,127.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,848.12 : 2,771.42 = 752.19 : x
  2. Step 2: Convert to fraction form
    1,848.12/2,771.42 = 752.19/x
  3. Step 3: Cross multiply
    1,848.12x = 2,771.42 × 752.19
  4. Step 4: Simplify right side
    1,848.12x = 2,084,620.26
  5. Step 5: Solve for x
    x = 2,084,620.26/1,848.12
  6. Step 6: Final answer
    x = 1,127.97

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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.