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Finding the Fourth Proportional to 15,473, 21,367.32 and 10,770.14

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Solution

The fourth proportional to 15,473, 21,367.32 and 10,770.14 is: 14,872.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,473 : 21,367.32 = 10,770.14 : x
  2. Step 2: Convert to fraction form
    15,473/21,367.32 = 10,770.14/x
  3. Step 3: Cross multiply
    15,473x = 21,367.32 × 10,770.14
  4. Step 4: Simplify right side
    15,473x = 230,129,027.82
  5. Step 5: Solve for x
    x = 230,129,027.82/15,473
  6. Step 6: Final answer
    x = 14,872.94

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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.