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Finding the Fourth Proportional to 79,607.16, 109,812.26 and 49,747.32

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Solution

The fourth proportional to 79,607.16, 109,812.26 and 49,747.32 is: 68,622.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,607.16 : 109,812.26 = 49,747.32 : x
  2. Step 2: Convert to fraction form
    79,607.16/109,812.26 = 49,747.32/x
  3. Step 3: Cross multiply
    79,607.16x = 109,812.26 × 49,747.32
  4. Step 4: Simplify right side
    79,607.16x = 5,462,865,389.41
  5. Step 5: Solve for x
    x = 5,462,865,389.41/79,607.16
  6. Step 6: Final answer
    x = 68,622.79

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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.