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Finding the Fourth Proportional to 63,622.32, 87,881.48 and 48,422.64

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Solution

The fourth proportional to 63,622.32, 87,881.48 and 48,422.64 is: 66,886.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,622.32 : 87,881.48 = 48,422.64 : x
  2. Step 2: Convert to fraction form
    63,622.32/87,881.48 = 48,422.64/x
  3. Step 3: Cross multiply
    63,622.32x = 87,881.48 × 48,422.64
  4. Step 4: Simplify right side
    63,622.32x = 4,255,453,268.71
  5. Step 5: Solve for x
    x = 4,255,453,268.71/63,622.32
  6. Step 6: Final answer
    x = 66,886.17

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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.