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Finding the Fourth Proportional to 74,963.80, 112,316.10 and 35,435.80

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Solution

The fourth proportional to 74,963.80, 112,316.10 and 35,435.80 is: 53,092.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,963.80 : 112,316.10 = 35,435.80 : x
  2. Step 2: Convert to fraction form
    74,963.80/112,316.10 = 35,435.80/x
  3. Step 3: Cross multiply
    74,963.80x = 112,316.10 × 35,435.80
  4. Step 4: Simplify right side
    74,963.80x = 3,980,010,856.38
  5. Step 5: Solve for x
    x = 3,980,010,856.38/74,963.80
  6. Step 6: Final answer
    x = 53,092.44

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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.