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Finding the Fourth Proportional to 65,864.84, 90,893.63 and 35,650.42

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Solution

The fourth proportional to 65,864.84, 90,893.63 and 35,650.42 is: 49,197.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,864.84 : 90,893.63 = 35,650.42 : x
  2. Step 2: Convert to fraction form
    65,864.84/90,893.63 = 35,650.42/x
  3. Step 3: Cross multiply
    65,864.84x = 90,893.63 × 35,650.42
  4. Step 4: Simplify right side
    65,864.84x = 3,240,395,946.72
  5. Step 5: Solve for x
    x = 3,240,395,946.72/65,864.84
  6. Step 6: Final answer
    x = 49,197.66

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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.