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Finding the Fourth Proportional to 53,190.87, 79,787.13 and 15,754.74

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Solution

The fourth proportional to 53,190.87, 79,787.13 and 15,754.74 is: 23,632.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,190.87 : 79,787.13 = 15,754.74 : x
  2. Step 2: Convert to fraction form
    53,190.87/79,787.13 = 15,754.74/x
  3. Step 3: Cross multiply
    53,190.87x = 79,787.13 × 15,754.74
  4. Step 4: Simplify right side
    53,190.87x = 1,257,025,488.50
  5. Step 5: Solve for x
    x = 1,257,025,488.50/53,190.87
  6. Step 6: Final answer
    x = 23,632.35

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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.