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Finding the Fourth Proportional to 16,824.40, 25,111.78 and 14,856.40

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Solution

The fourth proportional to 16,824.40, 25,111.78 and 14,856.40 is: 22,174.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,824.40 : 25,111.78 = 14,856.40 : x
  2. Step 2: Convert to fraction form
    16,824.40/25,111.78 = 14,856.40/x
  3. Step 3: Cross multiply
    16,824.40x = 25,111.78 × 14,856.40
  4. Step 4: Simplify right side
    16,824.40x = 373,070,648.39
  5. Step 5: Solve for x
    x = 373,070,648.39/16,824.40
  6. Step 6: Final answer
    x = 22,174.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.