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Finding the Fourth Proportional to 64,615.50, 96,922.08 and 35,220.42

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Solution

The fourth proportional to 64,615.50, 96,922.08 and 35,220.42 is: 52,829.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,615.50 : 96,922.08 = 35,220.42 : x
  2. Step 2: Convert to fraction form
    64,615.50/96,922.08 = 35,220.42/x
  3. Step 3: Cross multiply
    64,615.50x = 96,922.08 × 35,220.42
  4. Step 4: Simplify right side
    64,615.50x = 3,413,636,364.87
  5. Step 5: Solve for x
    x = 3,413,636,364.87/64,615.50
  6. Step 6: Final answer
    x = 52,829.99

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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.