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Finding the Fourth Proportional to 39,186.58, 58,991.73 and 35,699

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Solution

The fourth proportional to 39,186.58, 58,991.73 and 35,699 is: 53,741.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,186.58 : 58,991.73 = 35,699 : x
  2. Step 2: Convert to fraction form
    39,186.58/58,991.73 = 35,699/x
  3. Step 3: Cross multiply
    39,186.58x = 58,991.73 × 35,699
  4. Step 4: Simplify right side
    39,186.58x = 2,105,945,590.78
  5. Step 5: Solve for x
    x = 2,105,945,590.78/39,186.58
  6. Step 6: Final answer
    x = 53,741.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.