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Finding the Fourth Proportional to 72,463.54, 99,953.67 and 52,349.97

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Solution

The fourth proportional to 72,463.54, 99,953.67 and 52,349.97 is: 72,209.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,463.54 : 99,953.67 = 52,349.97 : x
  2. Step 2: Convert to fraction form
    72,463.54/99,953.67 = 52,349.97/x
  3. Step 3: Cross multiply
    72,463.54x = 99,953.67 × 52,349.97
  4. Step 4: Simplify right side
    72,463.54x = 5,232,571,625.89
  5. Step 5: Solve for x
    x = 5,232,571,625.89/72,463.54
  6. Step 6: Final answer
    x = 72,209.72

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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.