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Finding the Fourth Proportional to 66,893.78, 100,340.86 and 16,973.80

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Solution

The fourth proportional to 66,893.78, 100,340.86 and 16,973.80 is: 25,460.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,893.78 : 100,340.86 = 16,973.80 : x
  2. Step 2: Convert to fraction form
    66,893.78/100,340.86 = 16,973.80/x
  3. Step 3: Cross multiply
    66,893.78x = 100,340.86 × 16,973.80
  4. Step 4: Simplify right side
    66,893.78x = 1,703,165,689.47
  5. Step 5: Solve for x
    x = 1,703,165,689.47/66,893.78
  6. Step 6: Final answer
    x = 25,460.75

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1.5x scale

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.