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Finding the Fourth Proportional to 49,673.80, 74,510.70 and 40,342.60

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Solution

The fourth proportional to 49,673.80, 74,510.70 and 40,342.60 is: 60,513.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,673.80 : 74,510.70 = 40,342.60 : x
  2. Step 2: Convert to fraction form
    49,673.80/74,510.70 = 40,342.60/x
  3. Step 3: Cross multiply
    49,673.80x = 74,510.70 × 40,342.60
  4. Step 4: Simplify right side
    49,673.80x = 3,005,955,365.82
  5. Step 5: Solve for x
    x = 3,005,955,365.82/49,673.80
  6. Step 6: Final answer
    x = 60,513.90

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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.