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Finding the Fourth Proportional to 66,695.90, 100,036.49 and 16,776.02

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Solution

The fourth proportional to 66,695.90, 100,036.49 and 16,776.02 is: 25,162.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,695.90 : 100,036.49 = 16,776.02 : x
  2. Step 2: Convert to fraction form
    66,695.90/100,036.49 = 16,776.02/x
  3. Step 3: Cross multiply
    66,695.90x = 100,036.49 × 16,776.02
  4. Step 4: Simplify right side
    66,695.90x = 1,678,214,323.18
  5. Step 5: Solve for x
    x = 1,678,214,323.18/66,695.90
  6. Step 6: Final answer
    x = 25,162.18

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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.