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Finding the Fourth Proportional to 5,810.98, 8,717.91 and 1,915.42

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Solution

The fourth proportional to 5,810.98, 8,717.91 and 1,915.42 is: 2,873.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,810.98 : 8,717.91 = 1,915.42 : x
  2. Step 2: Convert to fraction form
    5,810.98/8,717.91 = 1,915.42/x
  3. Step 3: Cross multiply
    5,810.98x = 8,717.91 × 1,915.42
  4. Step 4: Simplify right side
    5,810.98x = 16,698,459.17
  5. Step 5: Solve for x
    x = 16,698,459.17/5,810.98
  6. Step 6: Final answer
    x = 2,873.60

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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.