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Finding the Fourth Proportional to 53,604, 80,390.88 and 22,400.64

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Solution

The fourth proportional to 53,604, 80,390.88 and 22,400.64 is: 33,594.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,604 : 80,390.88 = 22,400.64 : x
  2. Step 2: Convert to fraction form
    53,604/80,390.88 = 22,400.64/x
  3. Step 3: Cross multiply
    53,604x = 80,390.88 × 22,400.64
  4. Step 4: Simplify right side
    53,604x = 1,800,807,162.16
  5. Step 5: Solve for x
    x = 1,800,807,162.16/53,604
  6. Step 6: Final answer
    x = 33,594.64

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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.