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Finding the Fourth Proportional to 79,552.84, 109,785.38 and 45,561.48

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Solution

The fourth proportional to 79,552.84, 109,785.38 and 45,561.48 is: 62,876.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,552.84 : 109,785.38 = 45,561.48 : x
  2. Step 2: Convert to fraction form
    79,552.84/109,785.38 = 45,561.48/x
  3. Step 3: Cross multiply
    79,552.84x = 109,785.38 × 45,561.48
  4. Step 4: Simplify right side
    79,552.84x = 5,001,984,395.16
  5. Step 5: Solve for x
    x = 5,001,984,395.16/79,552.84
  6. Step 6: Final answer
    x = 62,876.25

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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.