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Finding the Fourth Proportional to 19,718.44, 27,210.22 and 10,764.12

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Solution

The fourth proportional to 19,718.44, 27,210.22 and 10,764.12 is: 14,853.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,718.44 : 27,210.22 = 10,764.12 : x
  2. Step 2: Convert to fraction form
    19,718.44/27,210.22 = 10,764.12/x
  3. Step 3: Cross multiply
    19,718.44x = 27,210.22 × 10,764.12
  4. Step 4: Simplify right side
    19,718.44x = 292,894,073.31
  5. Step 5: Solve for x
    x = 292,894,073.31/19,718.44
  6. Step 6: Final answer
    x = 14,853.82

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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.