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Finding the Fourth Proportional to 56,740.80, 78,302.88 and 35,532.48

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Solution

The fourth proportional to 56,740.80, 78,302.88 and 35,532.48 is: 49,035.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,740.80 : 78,302.88 = 35,532.48 : x
  2. Step 2: Convert to fraction form
    56,740.80/78,302.88 = 35,532.48/x
  3. Step 3: Cross multiply
    56,740.80x = 78,302.88 × 35,532.48
  4. Step 4: Simplify right side
    56,740.80x = 2,782,295,517.54
  5. Step 5: Solve for x
    x = 2,782,295,517.54/56,740.80
  6. Step 6: Final answer
    x = 49,035.18

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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.