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Finding the Fourth Proportional to 65,549.84, 90,407.39 and 44,865.60

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Solution

The fourth proportional to 65,549.84, 90,407.39 and 44,865.60 is: 61,879.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,549.84 : 90,407.39 = 44,865.60 : x
  2. Step 2: Convert to fraction form
    65,549.84/90,407.39 = 44,865.60/x
  3. Step 3: Cross multiply
    65,549.84x = 90,407.39 × 44,865.60
  4. Step 4: Simplify right side
    65,549.84x = 4,056,181,796.78
  5. Step 5: Solve for x
    x = 4,056,181,796.78/65,549.84
  6. Step 6: Final answer
    x = 61,879.35

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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.