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Finding the Fourth Proportional to 53,590.65, 80,397.50 and 18,055.50

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Solution

The fourth proportional to 53,590.65, 80,397.50 and 18,055.50 is: 27,087.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,590.65 : 80,397.50 = 18,055.50 : x
  2. Step 2: Convert to fraction form
    53,590.65/80,397.50 = 18,055.50/x
  3. Step 3: Cross multiply
    53,590.65x = 80,397.50 × 18,055.50
  4. Step 4: Simplify right side
    53,590.65x = 1,451,616,970.97
  5. Step 5: Solve for x
    x = 1,451,616,970.97/53,590.65
  6. Step 6: Final answer
    x = 27,087.13

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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.