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Finding the Fourth Proportional to 48,318.40, 72,490.40 and 17,150.40

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Solution

The fourth proportional to 48,318.40, 72,490.40 and 17,150.40 is: 25,730.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,318.40 : 72,490.40 = 17,150.40 : x
  2. Step 2: Convert to fraction form
    48,318.40/72,490.40 = 17,150.40/x
  3. Step 3: Cross multiply
    48,318.40x = 72,490.40 × 17,150.40
  4. Step 4: Simplify right side
    48,318.40x = 1,243,239,356.16
  5. Step 5: Solve for x
    x = 1,243,239,356.16/48,318.40
  6. Step 6: Final answer
    x = 25,730.14

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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.