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Finding the Fourth Proportional to 64,905.90, 97,320.45 and 33,801.90

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Solution

The fourth proportional to 64,905.90, 97,320.45 and 33,801.90 is: 50,682.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,905.90 : 97,320.45 = 33,801.90 : x
  2. Step 2: Convert to fraction form
    64,905.90/97,320.45 = 33,801.90/x
  3. Step 3: Cross multiply
    64,905.90x = 97,320.45 × 33,801.90
  4. Step 4: Simplify right side
    64,905.90x = 3,289,616,118.86
  5. Step 5: Solve for x
    x = 3,289,616,118.86/64,905.90
  6. Step 6: Final answer
    x = 50,682.85

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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.