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Finding the Fourth Proportional to 18,384.95, 25,205.98 and 18,052.80

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Solution

The fourth proportional to 18,384.95, 25,205.98 and 18,052.80 is: 24,750.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,384.95 : 25,205.98 = 18,052.80 : x
  2. Step 2: Convert to fraction form
    18,384.95/25,205.98 = 18,052.80/x
  3. Step 3: Cross multiply
    18,384.95x = 25,205.98 × 18,052.80
  4. Step 4: Simplify right side
    18,384.95x = 455,038,470.61
  5. Step 5: Solve for x
    x = 455,038,470.61/18,384.95
  6. Step 6: Final answer
    x = 24,750.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.