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Finding the Fourth Proportional to 29,053.80, 40,102.83 and 17,120.98

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Solution

The fourth proportional to 29,053.80, 40,102.83 and 17,120.98 is: 23,632.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,053.80 : 40,102.83 = 17,120.98 : x
  2. Step 2: Convert to fraction form
    29,053.80/40,102.83 = 17,120.98/x
  3. Step 3: Cross multiply
    29,053.80x = 40,102.83 × 17,120.98
  4. Step 4: Simplify right side
    29,053.80x = 686,599,800.50
  5. Step 5: Solve for x
    x = 686,599,800.50/29,053.80
  6. Step 6: Final answer
    x = 23,632.01

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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.