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Finding the Fourth Proportional to 63,626.32, 87,887 and 48,426.64

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Solution

The fourth proportional to 63,626.32, 87,887 and 48,426.64 is: 66,891.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,626.32 : 87,887 = 48,426.64 : x
  2. Step 2: Convert to fraction form
    63,626.32/87,887 = 48,426.64/x
  3. Step 3: Cross multiply
    63,626.32x = 87,887 × 48,426.64
  4. Step 4: Simplify right side
    63,626.32x = 4,256,072,109.68
  5. Step 5: Solve for x
    x = 4,256,072,109.68/63,626.32
  6. Step 6: Final answer
    x = 66,891.69

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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.