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Finding the Fourth Proportional to 18,365.70, 27,529.35 and 10,032.90

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Solution

The fourth proportional to 18,365.70, 27,529.35 and 10,032.90 is: 15,038.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,365.70 : 27,529.35 = 10,032.90 : x
  2. Step 2: Convert to fraction form
    18,365.70/27,529.35 = 10,032.90/x
  3. Step 3: Cross multiply
    18,365.70x = 27,529.35 × 10,032.90
  4. Step 4: Simplify right side
    18,365.70x = 276,199,215.62
  5. Step 5: Solve for x
    x = 276,199,215.62/18,365.70
  6. Step 6: Final answer
    x = 15,038.86

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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.