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Finding the Fourth Proportional to 65,047.68, 89,765.82 and 35,239.68

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Solution

The fourth proportional to 65,047.68, 89,765.82 and 35,239.68 is: 48,630.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,047.68 : 89,765.82 = 35,239.68 : x
  2. Step 2: Convert to fraction form
    65,047.68/89,765.82 = 35,239.68/x
  3. Step 3: Cross multiply
    65,047.68x = 89,765.82 × 35,239.68
  4. Step 4: Simplify right side
    65,047.68x = 3,163,318,771.74
  5. Step 5: Solve for x
    x = 3,163,318,771.74/65,047.68
  6. Step 6: Final answer
    x = 48,630.77

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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.