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Finding the Fourth Proportional to 72,937.40, 109,406.12 and 23,021.39

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Solution

The fourth proportional to 72,937.40, 109,406.12 and 23,021.39 is: 34,532.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,937.40 : 109,406.12 = 23,021.39 : x
  2. Step 2: Convert to fraction form
    72,937.40/109,406.12 = 23,021.39/x
  3. Step 3: Cross multiply
    72,937.40x = 109,406.12 × 23,021.39
  4. Step 4: Simplify right side
    72,937.40x = 2,518,680,956.91
  5. Step 5: Solve for x
    x = 2,518,680,956.91/72,937.40
  6. Step 6: Final answer
    x = 34,532.09

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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.