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Finding the Fourth Proportional to 64,905.40, 97,319.70 and 33,801.40

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Solution

The fourth proportional to 64,905.40, 97,319.70 and 33,801.40 is: 50,682.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,905.40 : 97,319.70 = 33,801.40 : x
  2. Step 2: Convert to fraction form
    64,905.40/97,319.70 = 33,801.40/x
  3. Step 3: Cross multiply
    64,905.40x = 97,319.70 × 33,801.40
  4. Step 4: Simplify right side
    64,905.40x = 3,289,542,107.58
  5. Step 5: Solve for x
    x = 3,289,542,107.58/64,905.40
  6. Step 6: Final answer
    x = 50,682.10

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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.