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Finding the Fourth Proportional to 59,971.80, 89,784.90 and 36,643.80

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Solution

The fourth proportional to 59,971.80, 89,784.90 and 36,643.80 is: 54,860.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,971.80 : 89,784.90 = 36,643.80 : x
  2. Step 2: Convert to fraction form
    59,971.80/89,784.90 = 36,643.80/x
  3. Step 3: Cross multiply
    59,971.80x = 89,784.90 × 36,643.80
  4. Step 4: Simplify right side
    59,971.80x = 3,290,059,918.62
  5. Step 5: Solve for x
    x = 3,290,059,918.62/59,971.80
  6. Step 6: Final answer
    x = 54,860.12

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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.