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Finding the Fourth Proportional to 15,088.80, 22,600.80 and 12,496.80

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Solution

The fourth proportional to 15,088.80, 22,600.80 and 12,496.80 is: 18,718.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,088.80 : 22,600.80 = 12,496.80 : x
  2. Step 2: Convert to fraction form
    15,088.80/22,600.80 = 12,496.80/x
  3. Step 3: Cross multiply
    15,088.80x = 22,600.80 × 12,496.80
  4. Step 4: Simplify right side
    15,088.80x = 282,437,677.44
  5. Step 5: Solve for x
    x = 282,437,677.44/15,088.80
  6. Step 6: Final answer
    x = 18,718.37

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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.