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Finding the Fourth Proportional to 45,205.76, 67,808.64 and 17,503.76

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Solution

The fourth proportional to 45,205.76, 67,808.64 and 17,503.76 is: 26,255.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,205.76 : 67,808.64 = 17,503.76 : x
  2. Step 2: Convert to fraction form
    45,205.76/67,808.64 = 17,503.76/x
  3. Step 3: Cross multiply
    45,205.76x = 67,808.64 × 17,503.76
  4. Step 4: Simplify right side
    45,205.76x = 1,186,906,160.49
  5. Step 5: Solve for x
    x = 1,186,906,160.49/45,205.76
  6. Step 6: Final answer
    x = 26,255.64

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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.