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Finding the Fourth Proportional to 67,812.80, 93,601.07 and 40,957.14

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Solution

The fourth proportional to 67,812.80, 93,601.07 and 40,957.14 is: 56,532.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,812.80 : 93,601.07 = 40,957.14 : x
  2. Step 2: Convert to fraction form
    67,812.80/93,601.07 = 40,957.14/x
  3. Step 3: Cross multiply
    67,812.80x = 93,601.07 × 40,957.14
  4. Step 4: Simplify right side
    67,812.80x = 3,833,632,427.95
  5. Step 5: Solve for x
    x = 3,833,632,427.95/67,812.80
  6. Step 6: Final answer
    x = 56,532.58

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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.