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Finding the Fourth Proportional to 16,485.60, 24,706.80 and 6,616.80

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Solution

The fourth proportional to 16,485.60, 24,706.80 and 6,616.80 is: 9,916.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,485.60 : 24,706.80 = 6,616.80 : x
  2. Step 2: Convert to fraction form
    16,485.60/24,706.80 = 6,616.80/x
  3. Step 3: Cross multiply
    16,485.60x = 24,706.80 × 6,616.80
  4. Step 4: Simplify right side
    16,485.60x = 163,479,954.24
  5. Step 5: Solve for x
    x = 163,479,954.24/16,485.60
  6. Step 6: Final answer
    x = 9,916.53

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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.