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Finding the Fourth Proportional to 79,487.55, 109,692.63 and 45,496.17

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Solution

The fourth proportional to 79,487.55, 109,692.63 and 45,496.17 is: 62,784.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,487.55 : 109,692.63 = 45,496.17 : x
  2. Step 2: Convert to fraction form
    79,487.55/109,692.63 = 45,496.17/x
  3. Step 3: Cross multiply
    79,487.55x = 109,692.63 × 45,496.17
  4. Step 4: Simplify right side
    79,487.55x = 4,990,594,542.23
  5. Step 5: Solve for x
    x = 4,990,594,542.23/79,487.55
  6. Step 6: Final answer
    x = 62,784.61

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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.