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Finding the Fourth Proportional to 29,681.94, 40,961.14 and 16,070.12

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Solution

The fourth proportional to 29,681.94, 40,961.14 and 16,070.12 is: 22,176.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,681.94 : 40,961.14 = 16,070.12 : x
  2. Step 2: Convert to fraction form
    29,681.94/40,961.14 = 16,070.12/x
  3. Step 3: Cross multiply
    29,681.94x = 40,961.14 × 16,070.12
  4. Step 4: Simplify right side
    29,681.94x = 658,250,435.14
  5. Step 5: Solve for x
    x = 658,250,435.14/29,681.94
  6. Step 6: Final answer
    x = 22,176.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.