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Finding the Fourth Proportional to 39,507.59, 59,249.02 and 13,206.18

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Solution

The fourth proportional to 39,507.59, 59,249.02 and 13,206.18 is: 19,805.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,507.59 : 59,249.02 = 13,206.18 : x
  2. Step 2: Convert to fraction form
    39,507.59/59,249.02 = 13,206.18/x
  3. Step 3: Cross multiply
    39,507.59x = 59,249.02 × 13,206.18
  4. Step 4: Simplify right side
    39,507.59x = 782,453,222.94
  5. Step 5: Solve for x
    x = 782,453,222.94/39,507.59
  6. Step 6: Final answer
    x = 19,805.14

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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.