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Finding the Fourth Proportional to 72,616.50, 108,924.75 and 23,368.50

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Solution

The fourth proportional to 72,616.50, 108,924.75 and 23,368.50 is: 35,052.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,616.50 : 108,924.75 = 23,368.50 : x
  2. Step 2: Convert to fraction form
    72,616.50/108,924.75 = 23,368.50/x
  3. Step 3: Cross multiply
    72,616.50x = 108,924.75 × 23,368.50
  4. Step 4: Simplify right side
    72,616.50x = 2,545,408,020.38
  5. Step 5: Solve for x
    x = 2,545,408,020.38/72,616.50
  6. Step 6: Final answer
    x = 35,052.75

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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.