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Finding the Fourth Proportional to 64,212.09, 88,607.88 and 35,912.31

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Solution

The fourth proportional to 64,212.09, 88,607.88 and 35,912.31 is: 49,556.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,212.09 : 88,607.88 = 35,912.31 : x
  2. Step 2: Convert to fraction form
    64,212.09/88,607.88 = 35,912.31/x
  3. Step 3: Cross multiply
    64,212.09x = 88,607.88 × 35,912.31
  4. Step 4: Simplify right side
    64,212.09x = 3,182,113,696.96
  5. Step 5: Solve for x
    x = 3,182,113,696.96/64,212.09
  6. Step 6: Final answer
    x = 49,556.30

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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.