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Finding the Fourth Proportional to 18,359.80, 27,529.08 and 9,800.68

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Solution

The fourth proportional to 18,359.80, 27,529.08 and 9,800.68 is: 14,695.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,359.80 : 27,529.08 = 9,800.68 : x
  2. Step 2: Convert to fraction form
    18,359.80/27,529.08 = 9,800.68/x
  3. Step 3: Cross multiply
    18,359.80x = 27,529.08 × 9,800.68
  4. Step 4: Simplify right side
    18,359.80x = 269,803,703.77
  5. Step 5: Solve for x
    x = 269,803,703.77/18,359.80
  6. Step 6: Final answer
    x = 14,695.35

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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.