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Finding the Fourth Proportional to 62,600.48, 86,388.74 and 33,920.12

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Solution

The fourth proportional to 62,600.48, 86,388.74 and 33,920.12 is: 46,809.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,600.48 : 86,388.74 = 33,920.12 : x
  2. Step 2: Convert to fraction form
    62,600.48/86,388.74 = 33,920.12/x
  3. Step 3: Cross multiply
    62,600.48x = 86,388.74 × 33,920.12
  4. Step 4: Simplify right side
    62,600.48x = 2,930,316,126.68
  5. Step 5: Solve for x
    x = 2,930,316,126.68/62,600.48
  6. Step 6: Final answer
    x = 46,809.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.