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Finding the Fourth Proportional to 62,649.35, 86,448.35 and 40,001.60

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Solution

The fourth proportional to 62,649.35, 86,448.35 and 40,001.60 is: 55,197.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,649.35 : 86,448.35 = 40,001.60 : x
  2. Step 2: Convert to fraction form
    62,649.35/86,448.35 = 40,001.60/x
  3. Step 3: Cross multiply
    62,649.35x = 86,448.35 × 40,001.60
  4. Step 4: Simplify right side
    62,649.35x = 3,458,072,090.96
  5. Step 5: Solve for x
    x = 3,458,072,090.96/62,649.35
  6. Step 6: Final answer
    x = 55,197.26

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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.