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Finding the Fourth Proportional to 48,399.76, 72,601.08 and 13,342

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Solution

The fourth proportional to 48,399.76, 72,601.08 and 13,342 is: 20,013.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,399.76 : 72,601.08 = 13,342 : x
  2. Step 2: Convert to fraction form
    48,399.76/72,601.08 = 13,342/x
  3. Step 3: Cross multiply
    48,399.76x = 72,601.08 × 13,342
  4. Step 4: Simplify right side
    48,399.76x = 968,643,609.36
  5. Step 5: Solve for x
    x = 968,643,609.36/48,399.76
  6. Step 6: Final answer
    x = 20,013.40

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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.