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Finding the Fourth Proportional to 65,014.75, 89,720.37 and 35,206.75

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Solution

The fourth proportional to 65,014.75, 89,720.37 and 35,206.75 is: 48,585.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,014.75 : 89,720.37 = 35,206.75 : x
  2. Step 2: Convert to fraction form
    65,014.75/89,720.37 = 35,206.75/x
  3. Step 3: Cross multiply
    65,014.75x = 89,720.37 × 35,206.75
  4. Step 4: Simplify right side
    65,014.75x = 3,158,762,636.50
  5. Step 5: Solve for x
    x = 3,158,762,636.50/65,014.75
  6. Step 6: Final answer
    x = 48,585.32

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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.