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Finding the Fourth Proportional to 16,618.16, 24,915.90 and 6,221

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Solution

The fourth proportional to 16,618.16, 24,915.90 and 6,221 is: 9,327.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,618.16 : 24,915.90 = 6,221 : x
  2. Step 2: Convert to fraction form
    16,618.16/24,915.90 = 6,221/x
  3. Step 3: Cross multiply
    16,618.16x = 24,915.90 × 6,221
  4. Step 4: Simplify right side
    16,618.16x = 155,001,813.90
  5. Step 5: Solve for x
    x = 155,001,813.90/16,618.16
  6. Step 6: Final answer
    x = 9,327.25

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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.