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Finding the Fourth Proportional to 64,108.53, 88,469.44 and 35,430.21

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Solution

The fourth proportional to 64,108.53, 88,469.44 and 35,430.21 is: 48,893.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,108.53 : 88,469.44 = 35,430.21 : x
  2. Step 2: Convert to fraction form
    64,108.53/88,469.44 = 35,430.21/x
  3. Step 3: Cross multiply
    64,108.53x = 88,469.44 × 35,430.21
  4. Step 4: Simplify right side
    64,108.53x = 3,134,490,749.21
  5. Step 5: Solve for x
    x = 3,134,490,749.21/64,108.53
  6. Step 6: Final answer
    x = 48,893.51

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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.