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Finding the Fourth Proportional to 53,234.80, 79,838.56 and 15,786.12

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Solution

The fourth proportional to 53,234.80, 79,838.56 and 15,786.12 is: 23,675.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,234.80 : 79,838.56 = 15,786.12 : x
  2. Step 2: Convert to fraction form
    53,234.80/79,838.56 = 15,786.12/x
  3. Step 3: Cross multiply
    53,234.80x = 79,838.56 × 15,786.12
  4. Step 4: Simplify right side
    53,234.80x = 1,260,341,088.79
  5. Step 5: Solve for x
    x = 1,260,341,088.79/53,234.80
  6. Step 6: Final answer
    x = 23,675.14

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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.