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Finding the Fourth Proportional to 29,602.20, 40,849.86 and 16,857.12

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Solution

The fourth proportional to 29,602.20, 40,849.86 and 16,857.12 is: 23,262.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,602.20 : 40,849.86 = 16,857.12 : x
  2. Step 2: Convert to fraction form
    29,602.20/40,849.86 = 16,857.12/x
  3. Step 3: Cross multiply
    29,602.20x = 40,849.86 × 16,857.12
  4. Step 4: Simplify right side
    29,602.20x = 688,610,992.00
  5. Step 5: Solve for x
    x = 688,610,992.00/29,602.20
  6. Step 6: Final answer
    x = 23,262.16

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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.