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Finding the Fourth Proportional to 64,703.70, 89,291.07 and 36,409.41

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Solution

The fourth proportional to 64,703.70, 89,291.07 and 36,409.41 is: 50,244.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,703.70 : 89,291.07 = 36,409.41 : x
  2. Step 2: Convert to fraction form
    64,703.70/89,291.07 = 36,409.41/x
  3. Step 3: Cross multiply
    64,703.70x = 89,291.07 × 36,409.41
  4. Step 4: Simplify right side
    64,703.70x = 3,251,035,176.97
  5. Step 5: Solve for x
    x = 3,251,035,176.97/64,703.70
  6. Step 6: Final answer
    x = 50,244.97

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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.