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Finding the Fourth Proportional to 59,928.40, 89,904.60 and 17,808.40

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Solution

The fourth proportional to 59,928.40, 89,904.60 and 17,808.40 is: 26,716.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,928.40 : 89,904.60 = 17,808.40 : x
  2. Step 2: Convert to fraction form
    59,928.40/89,904.60 = 17,808.40/x
  3. Step 3: Cross multiply
    59,928.40x = 89,904.60 × 17,808.40
  4. Step 4: Simplify right side
    59,928.40x = 1,601,057,078.64
  5. Step 5: Solve for x
    x = 1,601,057,078.64/59,928.40
  6. Step 6: Final answer
    x = 26,716.17

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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.