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Finding the Fourth Proportional to 62,783.10, 94,186.80 and 18,411.30

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Solution

The fourth proportional to 62,783.10, 94,186.80 and 18,411.30 is: 27,620.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,783.10 : 94,186.80 = 18,411.30 : x
  2. Step 2: Convert to fraction form
    62,783.10/94,186.80 = 18,411.30/x
  3. Step 3: Cross multiply
    62,783.10x = 94,186.80 × 18,411.30
  4. Step 4: Simplify right side
    62,783.10x = 1,734,101,430.84
  5. Step 5: Solve for x
    x = 1,734,101,430.84/62,783.10
  6. Step 6: Final answer
    x = 27,620.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.