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Finding the Fourth Proportional to 64,369.92, 88,873.74 and 40,207.62

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Solution

The fourth proportional to 64,369.92, 88,873.74 and 40,207.62 is: 55,513.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,369.92 : 88,873.74 = 40,207.62 : x
  2. Step 2: Convert to fraction form
    64,369.92/88,873.74 = 40,207.62/x
  3. Step 3: Cross multiply
    64,369.92x = 88,873.74 × 40,207.62
  4. Step 4: Simplify right side
    64,369.92x = 3,573,401,565.90
  5. Step 5: Solve for x
    x = 3,573,401,565.90/64,369.92
  6. Step 6: Final answer
    x = 55,513.53

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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.