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Finding the Fourth Proportional to 72,853.92, 109,252.14 and 35,402.91

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Solution

The fourth proportional to 72,853.92, 109,252.14 and 35,402.91 is: 53,090.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,853.92 : 109,252.14 = 35,402.91 : x
  2. Step 2: Convert to fraction form
    72,853.92/109,252.14 = 35,402.91/x
  3. Step 3: Cross multiply
    72,853.92x = 109,252.14 × 35,402.91
  4. Step 4: Simplify right side
    72,853.92x = 3,867,843,679.73
  5. Step 5: Solve for x
    x = 3,867,843,679.73/72,853.92
  6. Step 6: Final answer
    x = 53,090.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.