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Finding the Fourth Proportional to 67,912.90, 93,709.81 and 37,698.45

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Solution

The fourth proportional to 67,912.90, 93,709.81 and 37,698.45 is: 52,018.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,912.90 : 93,709.81 = 37,698.45 : x
  2. Step 2: Convert to fraction form
    67,912.90/93,709.81 = 37,698.45/x
  3. Step 3: Cross multiply
    67,912.90x = 93,709.81 × 37,698.45
  4. Step 4: Simplify right side
    67,912.90x = 3,532,714,282.51
  5. Step 5: Solve for x
    x = 3,532,714,282.51/67,912.90
  6. Step 6: Final answer
    x = 52,018.31

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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.