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Finding the Fourth Proportional to 79,374.16, 109,528.36 and 47,542.24

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Solution

The fourth proportional to 79,374.16, 109,528.36 and 47,542.24 is: 65,603.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,374.16 : 109,528.36 = 47,542.24 : x
  2. Step 2: Convert to fraction form
    79,374.16/109,528.36 = 47,542.24/x
  3. Step 3: Cross multiply
    79,374.16x = 109,528.36 × 47,542.24
  4. Step 4: Simplify right side
    79,374.16x = 5,207,223,577.93
  5. Step 5: Solve for x
    x = 5,207,223,577.93/79,374.16
  6. Step 6: Final answer
    x = 65,603.51

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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.