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Finding the Fourth Proportional to 79,587.42, 109,822.77 and 45,589.38

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Solution

The fourth proportional to 79,587.42, 109,822.77 and 45,589.38 is: 62,908.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,587.42 : 109,822.77 = 45,589.38 : x
  2. Step 2: Convert to fraction form
    79,587.42/109,822.77 = 45,589.38/x
  3. Step 3: Cross multiply
    79,587.42x = 109,822.77 × 45,589.38
  4. Step 4: Simplify right side
    79,587.42x = 5,006,751,994.18
  5. Step 5: Solve for x
    x = 5,006,751,994.18/79,587.42
  6. Step 6: Final answer
    x = 62,908.84

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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.