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Finding the Fourth Proportional to 16,605.76, 24,915.93 and 8,815.18

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Solution

The fourth proportional to 16,605.76, 24,915.93 and 8,815.18 is: 13,226.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,605.76 : 24,915.93 = 8,815.18 : x
  2. Step 2: Convert to fraction form
    16,605.76/24,915.93 = 8,815.18/x
  3. Step 3: Cross multiply
    16,605.76x = 24,915.93 × 8,815.18
  4. Step 4: Simplify right side
    16,605.76x = 219,638,407.82
  5. Step 5: Solve for x
    x = 219,638,407.82/16,605.76
  6. Step 6: Final answer
    x = 13,226.64

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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.