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Finding the Fourth Proportional to 6,598.61, 9,898.20 and 1,918.52

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Solution

The fourth proportional to 6,598.61, 9,898.20 and 1,918.52 is: 2,877.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,598.61 : 9,898.20 = 1,918.52 : x
  2. Step 2: Convert to fraction form
    6,598.61/9,898.20 = 1,918.52/x
  3. Step 3: Cross multiply
    6,598.61x = 9,898.20 × 1,918.52
  4. Step 4: Simplify right side
    6,598.61x = 18,989,861.17
  5. Step 5: Solve for x
    x = 18,989,861.17/6,598.61
  6. Step 6: Final answer
    x = 2,877.86

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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.