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Finding the Fourth Proportional to 29,428.88, 40,602.87 and 16,680.02

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Solution

The fourth proportional to 29,428.88, 40,602.87 and 16,680.02 is: 23,013.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,428.88 : 40,602.87 = 16,680.02 : x
  2. Step 2: Convert to fraction form
    29,428.88/40,602.87 = 16,680.02/x
  3. Step 3: Cross multiply
    29,428.88x = 40,602.87 × 16,680.02
  4. Step 4: Simplify right side
    29,428.88x = 677,256,480.64
  5. Step 5: Solve for x
    x = 677,256,480.64/29,428.88
  6. Step 6: Final answer
    x = 23,013.33

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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.