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Finding the Fourth Proportional to 73,207.94, 109,813.71 and 20,617.07

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Solution

The fourth proportional to 73,207.94, 109,813.71 and 20,617.07 is: 30,926.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,207.94 : 109,813.71 = 20,617.07 : x
  2. Step 2: Convert to fraction form
    73,207.94/109,813.71 = 20,617.07/x
  3. Step 3: Cross multiply
    73,207.94x = 109,813.71 × 20,617.07
  4. Step 4: Simplify right side
    73,207.94x = 2,264,036,946.03
  5. Step 5: Solve for x
    x = 2,264,036,946.03/73,207.94
  6. Step 6: Final answer
    x = 30,926.11

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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.