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Finding the Fourth Proportional to 3,392.68, 4,681.20 and 2,064.08

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Solution

The fourth proportional to 3,392.68, 4,681.20 and 2,064.08 is: 2,848.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,392.68 : 4,681.20 = 2,064.08 : x
  2. Step 2: Convert to fraction form
    3,392.68/4,681.20 = 2,064.08/x
  3. Step 3: Cross multiply
    3,392.68x = 4,681.20 × 2,064.08
  4. Step 4: Simplify right side
    3,392.68x = 9,662,371.30
  5. Step 5: Solve for x
    x = 9,662,371.30/3,392.68
  6. Step 6: Final answer
    x = 2,848.01

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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.