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Finding the Fourth Proportional to 14,396.28, 21,597.48 and 8,159.28

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Solution

The fourth proportional to 14,396.28, 21,597.48 and 8,159.28 is: 12,240.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,396.28 : 21,597.48 = 8,159.28 : x
  2. Step 2: Convert to fraction form
    14,396.28/21,597.48 = 8,159.28/x
  3. Step 3: Cross multiply
    14,396.28x = 21,597.48 × 8,159.28
  4. Step 4: Simplify right side
    14,396.28x = 176,219,886.61
  5. Step 5: Solve for x
    x = 176,219,886.61/14,396.28
  6. Step 6: Final answer
    x = 12,240.65

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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.