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Finding the Fourth Proportional to 19,179, 26,470.17 and 12,011.63

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Solution

The fourth proportional to 19,179, 26,470.17 and 12,011.63 is: 16,578.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,179 : 26,470.17 = 12,011.63 : x
  2. Step 2: Convert to fraction form
    19,179/26,470.17 = 12,011.63/x
  3. Step 3: Cross multiply
    19,179x = 26,470.17 × 12,011.63
  4. Step 4: Simplify right side
    19,179x = 317,949,888.08
  5. Step 5: Solve for x
    x = 317,949,888.08/19,179
  6. Step 6: Final answer
    x = 16,578.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.