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Finding the Fourth Proportional to 28,604.52, 42,908.67 and 9,886.37

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Solution

The fourth proportional to 28,604.52, 42,908.67 and 9,886.37 is: 14,830.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,604.52 : 42,908.67 = 9,886.37 : x
  2. Step 2: Convert to fraction form
    28,604.52/42,908.67 = 9,886.37/x
  3. Step 3: Cross multiply
    28,604.52x = 42,908.67 × 9,886.37
  4. Step 4: Simplify right side
    28,604.52x = 424,210,773.28
  5. Step 5: Solve for x
    x = 424,210,773.28/28,604.52
  6. Step 6: Final answer
    x = 14,830.20

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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.