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Finding the Fourth Proportional to 53,156.76, 79,734.06 and 13,713.54

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Solution

The fourth proportional to 53,156.76, 79,734.06 and 13,713.54 is: 20,570.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,156.76 : 79,734.06 = 13,713.54 : x
  2. Step 2: Convert to fraction form
    53,156.76/79,734.06 = 13,713.54/x
  3. Step 3: Cross multiply
    53,156.76x = 79,734.06 × 13,713.54
  4. Step 4: Simplify right side
    53,156.76x = 1,093,436,221.17
  5. Step 5: Solve for x
    x = 1,093,436,221.17/53,156.76
  6. Step 6: Final answer
    x = 20,570.03

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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.