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Finding the Fourth Proportional to 16,971.78, 25,479.90 and 14,894.10

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Solution

The fourth proportional to 16,971.78, 25,479.90 and 14,894.10 is: 22,360.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,971.78 : 25,479.90 = 14,894.10 : x
  2. Step 2: Convert to fraction form
    16,971.78/25,479.90 = 14,894.10/x
  3. Step 3: Cross multiply
    16,971.78x = 25,479.90 × 14,894.10
  4. Step 4: Simplify right side
    16,971.78x = 379,500,178.59
  5. Step 5: Solve for x
    x = 379,500,178.59/16,971.78
  6. Step 6: Final answer
    x = 22,360.66

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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.