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Finding the Fourth Proportional to 45,799.76, 68,709.43 and 14,209.13

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Solution

The fourth proportional to 45,799.76, 68,709.43 and 14,209.13 is: 21,316.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,799.76 : 68,709.43 = 14,209.13 : x
  2. Step 2: Convert to fraction form
    45,799.76/68,709.43 = 14,209.13/x
  3. Step 3: Cross multiply
    45,799.76x = 68,709.43 × 14,209.13
  4. Step 4: Simplify right side
    45,799.76x = 976,301,101.69
  5. Step 5: Solve for x
    x = 976,301,101.69/45,799.76
  6. Step 6: Final answer
    x = 21,316.73

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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.