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Finding the Fourth Proportional to 64,806.19, 89,432.54 and 34,998.19

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Solution

The fourth proportional to 64,806.19, 89,432.54 and 34,998.19 is: 48,297.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,806.19 : 89,432.54 = 34,998.19 : x
  2. Step 2: Convert to fraction form
    64,806.19/89,432.54 = 34,998.19/x
  3. Step 3: Cross multiply
    64,806.19x = 89,432.54 × 34,998.19
  4. Step 4: Simplify right side
    64,806.19x = 3,129,976,759.77
  5. Step 5: Solve for x
    x = 3,129,976,759.77/64,806.19
  6. Step 6: Final answer
    x = 48,297.50

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Double scale
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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.