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Finding the Fourth Proportional to 28,461.06, 42,697.06 and 9,743.99

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Solution

The fourth proportional to 28,461.06, 42,697.06 and 9,743.99 is: 14,617.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,461.06 : 42,697.06 = 9,743.99 : x
  2. Step 2: Convert to fraction form
    28,461.06/42,697.06 = 9,743.99/x
  3. Step 3: Cross multiply
    28,461.06x = 42,697.06 × 9,743.99
  4. Step 4: Simplify right side
    28,461.06x = 416,039,487.82
  5. Step 5: Solve for x
    x = 416,039,487.82/28,461.06
  6. Step 6: Final answer
    x = 14,617.85

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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.