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Finding the Fourth Proportional to 66,925.44, 100,407.60 and 31,894.56

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Solution

The fourth proportional to 66,925.44, 100,407.60 and 31,894.56 is: 47,851.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,925.44 : 100,407.60 = 31,894.56 : x
  2. Step 2: Convert to fraction form
    66,925.44/100,407.60 = 31,894.56/x
  3. Step 3: Cross multiply
    66,925.44x = 100,407.60 × 31,894.56
  4. Step 4: Simplify right side
    66,925.44x = 3,202,456,222.66
  5. Step 5: Solve for x
    x = 3,202,456,222.66/66,925.44
  6. Step 6: Final answer
    x = 47,851.10

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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.