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Finding the Fourth Proportional to 65,765.04, 90,756.15 and 35,550.27

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Solution

The fourth proportional to 65,765.04, 90,756.15 and 35,550.27 is: 49,059.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,765.04 : 90,756.15 = 35,550.27 : x
  2. Step 2: Convert to fraction form
    65,765.04/90,756.15 = 35,550.27/x
  3. Step 3: Cross multiply
    65,765.04x = 90,756.15 × 35,550.27
  4. Step 4: Simplify right side
    65,765.04x = 3,226,405,636.66
  5. Step 5: Solve for x
    x = 3,226,405,636.66/65,765.04
  6. Step 6: Final answer
    x = 49,059.59

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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.