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Finding the Fourth Proportional to 21,764.88, 32,663.88 and 14,366.88

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Solution

The fourth proportional to 21,764.88, 32,663.88 and 14,366.88 is: 21,561.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,764.88 : 32,663.88 = 14,366.88 : x
  2. Step 2: Convert to fraction form
    21,764.88/32,663.88 = 14,366.88/x
  3. Step 3: Cross multiply
    21,764.88x = 32,663.88 × 14,366.88
  4. Step 4: Simplify right side
    21,764.88x = 469,278,044.29
  5. Step 5: Solve for x
    x = 469,278,044.29/21,764.88
  6. Step 6: Final answer
    x = 21,561.25

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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.