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Finding the Fourth Proportional to 67,293.74, 100,955.38 and 19,905.13

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Solution

The fourth proportional to 67,293.74, 100,955.38 and 19,905.13 is: 29,862.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,293.74 : 100,955.38 = 19,905.13 : x
  2. Step 2: Convert to fraction form
    67,293.74/100,955.38 = 19,905.13/x
  3. Step 3: Cross multiply
    67,293.74x = 100,955.38 × 19,905.13
  4. Step 4: Simplify right side
    67,293.74x = 2,009,529,963.10
  5. Step 5: Solve for x
    x = 2,009,529,963.10/67,293.74
  6. Step 6: Final answer
    x = 29,862.06

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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.