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Finding the Fourth Proportional to 74,818.96, 112,072.92 and 35,407.60

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Solution

The fourth proportional to 74,818.96, 112,072.92 and 35,407.60 is: 53,037.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,818.96 : 112,072.92 = 35,407.60 : x
  2. Step 2: Convert to fraction form
    74,818.96/112,072.92 = 35,407.60/x
  3. Step 3: Cross multiply
    74,818.96x = 112,072.92 × 35,407.60
  4. Step 4: Simplify right side
    74,818.96x = 3,968,233,122.19
  5. Step 5: Solve for x
    x = 3,968,233,122.19/74,818.96
  6. Step 6: Final answer
    x = 53,037.80

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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.