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Finding the Fourth Proportional to 3,570.67, 4,928.13 and 2,079.47

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Solution

The fourth proportional to 3,570.67, 4,928.13 and 2,079.47 is: 2,870.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,570.67 : 4,928.13 = 2,079.47 : x
  2. Step 2: Convert to fraction form
    3,570.67/4,928.13 = 2,079.47/x
  3. Step 3: Cross multiply
    3,570.67x = 4,928.13 × 2,079.47
  4. Step 4: Simplify right side
    3,570.67x = 10,247,873.85
  5. Step 5: Solve for x
    x = 10,247,873.85/3,570.67
  6. Step 6: Final answer
    x = 2,870.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.