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Finding the Fourth Proportional to 64,913.40, 97,331.70 and 33,809.40

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Solution

The fourth proportional to 64,913.40, 97,331.70 and 33,809.40 is: 50,694.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,913.40 : 97,331.70 = 33,809.40 : x
  2. Step 2: Convert to fraction form
    64,913.40/97,331.70 = 33,809.40/x
  3. Step 3: Cross multiply
    64,913.40x = 97,331.70 × 33,809.40
  4. Step 4: Simplify right side
    64,913.40x = 3,290,726,377.98
  5. Step 5: Solve for x
    x = 3,290,726,377.98/64,913.40
  6. Step 6: Final answer
    x = 50,694.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.