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Finding the Fourth Proportional to 29,602.77, 40,849.86 and 16,857.25

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Solution

The fourth proportional to 29,602.77, 40,849.86 and 16,857.25 is: 23,261.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,602.77 : 40,849.86 = 16,857.25 : x
  2. Step 2: Convert to fraction form
    29,602.77/40,849.86 = 16,857.25/x
  3. Step 3: Cross multiply
    29,602.77x = 40,849.86 × 16,857.25
  4. Step 4: Simplify right side
    29,602.77x = 688,616,218.20
  5. Step 5: Solve for x
    x = 688,616,218.20/29,602.77
  6. Step 6: Final answer
    x = 23,261.89

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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.