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Finding the Fourth Proportional to 5,693.88, 8,541.78 and 1,798.20

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Solution

The fourth proportional to 5,693.88, 8,541.78 and 1,798.20 is: 2,697.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,693.88 : 8,541.78 = 1,798.20 : x
  2. Step 2: Convert to fraction form
    5,693.88/8,541.78 = 1,798.20/x
  3. Step 3: Cross multiply
    5,693.88x = 8,541.78 × 1,798.20
  4. Step 4: Simplify right side
    5,693.88x = 15,359,828.80
  5. Step 5: Solve for x
    x = 15,359,828.80/5,693.88
  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.