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Finding the Fourth Proportional to 39,161.51, 58,742.25 and 9,578.99

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Solution

The fourth proportional to 39,161.51, 58,742.25 and 9,578.99 is: 14,368.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,161.51 : 58,742.25 = 9,578.99 : x
  2. Step 2: Convert to fraction form
    39,161.51/58,742.25 = 9,578.99/x
  3. Step 3: Cross multiply
    39,161.51x = 58,742.25 × 9,578.99
  4. Step 4: Simplify right side
    39,161.51x = 562,691,131.62
  5. Step 5: Solve for x
    x = 562,691,131.62/39,161.51
  6. Step 6: Final answer
    x = 14,368.48

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Similar ratio
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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.