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Finding the Fourth Proportional to 16,881.55, 25,319.98 and 5,788.06

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Solution

The fourth proportional to 16,881.55, 25,319.98 and 5,788.06 is: 8,681.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,881.55 : 25,319.98 = 5,788.06 : x
  2. Step 2: Convert to fraction form
    16,881.55/25,319.98 = 5,788.06/x
  3. Step 3: Cross multiply
    16,881.55x = 25,319.98 × 5,788.06
  4. Step 4: Simplify right side
    16,881.55x = 146,553,563.44
  5. Step 5: Solve for x
    x = 146,553,563.44/16,881.55
  6. Step 6: Final answer
    x = 8,681.29

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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.