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Finding the Fourth Proportional to 65,500.81, 90,425.52 and 44,103.07

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Solution

The fourth proportional to 65,500.81, 90,425.52 and 44,103.07 is: 60,885.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,500.81 : 90,425.52 = 44,103.07 : x
  2. Step 2: Convert to fraction form
    65,500.81/90,425.52 = 44,103.07/x
  3. Step 3: Cross multiply
    65,500.81x = 90,425.52 × 44,103.07
  4. Step 4: Simplify right side
    65,500.81x = 3,988,043,038.35
  5. Step 5: Solve for x
    x = 3,988,043,038.35/65,500.81
  6. Step 6: Final answer
    x = 60,885.40

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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.