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Finding the Fourth Proportional to 15,794.19, 21,799.40 and 10,770.40

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Solution

The fourth proportional to 15,794.19, 21,799.40 and 10,770.40 is: 14,865.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,794.19 : 21,799.40 = 10,770.40 : x
  2. Step 2: Convert to fraction form
    15,794.19/21,799.40 = 10,770.40/x
  3. Step 3: Cross multiply
    15,794.19x = 21,799.40 × 10,770.40
  4. Step 4: Simplify right side
    15,794.19x = 234,788,231.16
  5. Step 5: Solve for x
    x = 234,788,231.16/15,794.19
  6. Step 6: Final answer
    x = 14,865.48

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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.