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Finding the Fourth Proportional to 67,685.79, 93,405.21 and 37,470.45

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Solution

The fourth proportional to 67,685.79, 93,405.21 and 37,470.45 is: 51,708.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,685.79 : 93,405.21 = 37,470.45 : x
  2. Step 2: Convert to fraction form
    67,685.79/93,405.21 = 37,470.45/x
  3. Step 3: Cross multiply
    67,685.79x = 93,405.21 × 37,470.45
  4. Step 4: Simplify right side
    67,685.79x = 3,499,935,251.04
  5. Step 5: Solve for x
    x = 3,499,935,251.04/67,685.79
  6. Step 6: Final answer
    x = 51,708.57

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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.