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Finding the Fourth Proportional to 15,863.20, 23,746.20 and 14,988.40

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Solution

The fourth proportional to 15,863.20, 23,746.20 and 14,988.40 is: 22,436.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,863.20 : 23,746.20 = 14,988.40 : x
  2. Step 2: Convert to fraction form
    15,863.20/23,746.20 = 14,988.40/x
  3. Step 3: Cross multiply
    15,863.20x = 23,746.20 × 14,988.40
  4. Step 4: Simplify right side
    15,863.20x = 355,917,544.08
  5. Step 5: Solve for x
    x = 355,917,544.08/15,863.20
  6. Step 6: Final answer
    x = 22,436.68

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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.