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Finding the Fourth Proportional to 29,287.30, 40,415.61 and 16,541.01

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Solution

The fourth proportional to 29,287.30, 40,415.61 and 16,541.01 is: 22,826.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,287.30 : 40,415.61 = 16,541.01 : x
  2. Step 2: Convert to fraction form
    29,287.30/40,415.61 = 16,541.01/x
  3. Step 3: Cross multiply
    29,287.30x = 40,415.61 × 16,541.01
  4. Step 4: Simplify right side
    29,287.30x = 668,515,009.17
  5. Step 5: Solve for x
    x = 668,515,009.17/29,287.30
  6. Step 6: Final answer
    x = 22,826.11

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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.