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Finding the Fourth Proportional to 26,499.76, 39,724.93 and 8,957.32

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Solution

The fourth proportional to 26,499.76, 39,724.93 and 8,957.32 is: 13,427.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,499.76 : 39,724.93 = 8,957.32 : x
  2. Step 2: Convert to fraction form
    26,499.76/39,724.93 = 8,957.32/x
  3. Step 3: Cross multiply
    26,499.76x = 39,724.93 × 8,957.32
  4. Step 4: Simplify right side
    26,499.76x = 355,828,909.99
  5. Step 5: Solve for x
    x = 355,828,909.99/26,499.76
  6. Step 6: Final answer
    x = 13,427.63

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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.