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Finding the Fourth Proportional to 64,806.39, 89,432.79 and 34,998.39

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Solution

The fourth proportional to 64,806.39, 89,432.79 and 34,998.39 is: 48,297.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,806.39 : 89,432.79 = 34,998.39 : x
  2. Step 2: Convert to fraction form
    64,806.39/89,432.79 = 34,998.39/x
  3. Step 3: Cross multiply
    64,806.39x = 89,432.79 × 34,998.39
  4. Step 4: Simplify right side
    64,806.39x = 3,130,003,663.21
  5. Step 5: Solve for x
    x = 3,130,003,663.21/64,806.39
  6. Step 6: Final answer
    x = 48,297.76

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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.