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Finding the Fourth Proportional to 53,230, 79,842.84 and 15,788.56

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Solution

The fourth proportional to 53,230, 79,842.84 and 15,788.56 is: 23,682.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,230 : 79,842.84 = 15,788.56 : x
  2. Step 2: Convert to fraction form
    53,230/79,842.84 = 15,788.56/x
  3. Step 3: Cross multiply
    53,230x = 79,842.84 × 15,788.56
  4. Step 4: Simplify right side
    53,230x = 1,260,603,469.91
  5. Step 5: Solve for x
    x = 1,260,603,469.91/53,230
  6. Step 6: Final answer
    x = 23,682.20

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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.