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Finding the Fourth Proportional to 18,477.76, 27,722.54 and 6,623.52

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Solution

The fourth proportional to 18,477.76, 27,722.54 and 6,623.52 is: 9,937.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,477.76 : 27,722.54 = 6,623.52 : x
  2. Step 2: Convert to fraction form
    18,477.76/27,722.54 = 6,623.52/x
  3. Step 3: Cross multiply
    18,477.76x = 27,722.54 × 6,623.52
  4. Step 4: Simplify right side
    18,477.76x = 183,620,798.14
  5. Step 5: Solve for x
    x = 183,620,798.14/18,477.76
  6. Step 6: Final answer
    x = 9,937.39

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1.5x scale

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.