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Finding the Fourth Proportional to 4,706, 7,060.92 and 1,785.20

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Solution

The fourth proportional to 4,706, 7,060.92 and 1,785.20 is: 2,678.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,706 : 7,060.92 = 1,785.20 : x
  2. Step 2: Convert to fraction form
    4,706/7,060.92 = 1,785.20/x
  3. Step 3: Cross multiply
    4,706x = 7,060.92 × 1,785.20
  4. Step 4: Simplify right side
    4,706x = 12,605,154.38
  5. Step 5: Solve for x
    x = 12,605,154.38/4,706
  6. Step 6: Final answer
    x = 2,678.53

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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.