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Finding the Fourth Proportional to 53,237.80, 79,843.06 and 15,789.12

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Solution

The fourth proportional to 53,237.80, 79,843.06 and 15,789.12 is: 23,679.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,237.80 : 79,843.06 = 15,789.12 : x
  2. Step 2: Convert to fraction form
    53,237.80/79,843.06 = 15,789.12/x
  3. Step 3: Cross multiply
    53,237.80x = 79,843.06 × 15,789.12
  4. Step 4: Simplify right side
    53,237.80x = 1,260,651,655.51
  5. Step 5: Solve for x
    x = 1,260,651,655.51/53,237.80
  6. Step 6: Final answer
    x = 23,679.63

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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.