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Finding the Fourth Proportional to 65,712.10, 98,568.15 and 44,976.10

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Solution

The fourth proportional to 65,712.10, 98,568.15 and 44,976.10 is: 67,464.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,712.10 : 98,568.15 = 44,976.10 : x
  2. Step 2: Convert to fraction form
    65,712.10/98,568.15 = 44,976.10/x
  3. Step 3: Cross multiply
    65,712.10x = 98,568.15 × 44,976.10
  4. Step 4: Simplify right side
    65,712.10x = 4,433,210,971.22
  5. Step 5: Solve for x
    x = 4,433,210,971.22/65,712.10
  6. Step 6: Final answer
    x = 67,464.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.