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Finding the Fourth Proportional to 18,903.00, 28,365.54 and 7,064.92

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Solution

The fourth proportional to 18,903.00, 28,365.54 and 7,064.92 is: 10,601.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,903.00 : 28,365.54 = 7,064.92 : x
  2. Step 2: Convert to fraction form
    18,903.00/28,365.54 = 7,064.92/x
  3. Step 3: Cross multiply
    18,903.00x = 28,365.54 × 7,064.92
  4. Step 4: Simplify right side
    18,903.00x = 200,400,319.56
  5. Step 5: Solve for x
    x = 200,400,319.56/18,903.00
  6. Step 6: Final answer
    x = 10,601.51

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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.