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Finding the Fourth Proportional to 47,158.56, 70,724.16 and 19,069.92

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Solution

The fourth proportional to 47,158.56, 70,724.16 and 19,069.92 is: 28,599.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,158.56 : 70,724.16 = 19,069.92 : x
  2. Step 2: Convert to fraction form
    47,158.56/70,724.16 = 19,069.92/x
  3. Step 3: Cross multiply
    47,158.56x = 70,724.16 × 19,069.92
  4. Step 4: Simplify right side
    47,158.56x = 1,348,704,073.27
  5. Step 5: Solve for x
    x = 1,348,704,073.27/47,158.56
  6. Step 6: Final answer
    x = 28,599.35

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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.