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Finding the Fourth Proportional to 53,057.94, 79,591.90 and 15,618.02

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Solution

The fourth proportional to 53,057.94, 79,591.90 and 15,618.02 is: 23,428.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,057.94 : 79,591.90 = 15,618.02 : x
  2. Step 2: Convert to fraction form
    53,057.94/79,591.90 = 15,618.02/x
  3. Step 3: Cross multiply
    53,057.94x = 79,591.90 × 15,618.02
  4. Step 4: Simplify right side
    53,057.94x = 1,243,067,886.04
  5. Step 5: Solve for x
    x = 1,243,067,886.04/53,057.94
  6. Step 6: Final answer
    x = 23,428.50

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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.