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Finding the Fourth Proportional to 64,706.51, 89,294.81 and 36,412.20

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Solution

The fourth proportional to 64,706.51, 89,294.81 and 36,412.20 is: 50,248.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,706.51 : 89,294.81 = 36,412.20 : x
  2. Step 2: Convert to fraction form
    64,706.51/89,294.81 = 36,412.20/x
  3. Step 3: Cross multiply
    64,706.51x = 89,294.81 × 36,412.20
  4. Step 4: Simplify right side
    64,706.51x = 3,251,420,298.62
  5. Step 5: Solve for x
    x = 3,251,420,298.62/64,706.51
  6. Step 6: Final answer
    x = 50,248.73

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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.