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Finding the Fourth Proportional to 16,803.60, 25,205.40 and 16,220.40

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Solution

The fourth proportional to 16,803.60, 25,205.40 and 16,220.40 is: 24,330.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,803.60 : 25,205.40 = 16,220.40 : x
  2. Step 2: Convert to fraction form
    16,803.60/25,205.40 = 16,220.40/x
  3. Step 3: Cross multiply
    16,803.60x = 25,205.40 × 16,220.40
  4. Step 4: Simplify right side
    16,803.60x = 408,841,670.16
  5. Step 5: Solve for x
    x = 408,841,670.16/16,803.60
  6. Step 6: Final answer
    x = 24,330.60

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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.