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Finding the Fourth Proportional to 64,404.10, 96,606.15 and 43,408.90

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Solution

The fourth proportional to 64,404.10, 96,606.15 and 43,408.90 is: 65,113.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,404.10 : 96,606.15 = 43,408.90 : x
  2. Step 2: Convert to fraction form
    64,404.10/96,606.15 = 43,408.90/x
  3. Step 3: Cross multiply
    64,404.10x = 96,606.15 × 43,408.90
  4. Step 4: Simplify right side
    64,404.10x = 4,193,566,704.74
  5. Step 5: Solve for x
    x = 4,193,566,704.74/64,404.10
  6. Step 6: Final answer
    x = 65,113.35

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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.