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Finding the Fourth Proportional to 4,719.92, 7,079.94 and 1,798.38

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Solution

The fourth proportional to 4,719.92, 7,079.94 and 1,798.38 is: 2,697.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,719.92 : 7,079.94 = 1,798.38 : x
  2. Step 2: Convert to fraction form
    4,719.92/7,079.94 = 1,798.38/x
  3. Step 3: Cross multiply
    4,719.92x = 7,079.94 × 1,798.38
  4. Step 4: Simplify right side
    4,719.92x = 12,732,422.50
  5. Step 5: Solve for x
    x = 12,732,422.50/4,719.92
  6. Step 6: Final answer
    x = 2,697.60

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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.