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Finding the Fourth Proportional to 1,795.96, 2,690.79 and 1,248.49

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Solution

The fourth proportional to 1,795.96, 2,690.79 and 1,248.49 is: 1,870.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,795.96 : 2,690.79 = 1,248.49 : x
  2. Step 2: Convert to fraction form
    1,795.96/2,690.79 = 1,248.49/x
  3. Step 3: Cross multiply
    1,795.96x = 2,690.79 × 1,248.49
  4. Step 4: Simplify right side
    1,795.96x = 3,359,424.41
  5. Step 5: Solve for x
    x = 3,359,424.41/1,795.96
  6. Step 6: Final answer
    x = 1,870.55

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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.