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Finding the Fourth Proportional to 48,361.84, 72,543.60 and 13,301.28

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Solution

The fourth proportional to 48,361.84, 72,543.60 and 13,301.28 is: 19,952.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,361.84 : 72,543.60 = 13,301.28 : x
  2. Step 2: Convert to fraction form
    48,361.84/72,543.60 = 13,301.28/x
  3. Step 3: Cross multiply
    48,361.84x = 72,543.60 × 13,301.28
  4. Step 4: Simplify right side
    48,361.84x = 964,922,735.81
  5. Step 5: Solve for x
    x = 964,922,735.81/48,361.84
  6. Step 6: Final answer
    x = 19,952.15

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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.