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Finding the Fourth Proportional to 66,065.92, 99,114 and 28,632.26

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Solution

The fourth proportional to 66,065.92, 99,114 and 28,632.26 is: 42,954.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,065.92 : 99,114 = 28,632.26 : x
  2. Step 2: Convert to fraction form
    66,065.92/99,114 = 28,632.26/x
  3. Step 3: Cross multiply
    66,065.92x = 99,114 × 28,632.26
  4. Step 4: Simplify right side
    66,065.92x = 2,837,857,817.64
  5. Step 5: Solve for x
    x = 2,837,857,817.64/66,065.92
  6. Step 6: Final answer
    x = 42,954.94

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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.