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Finding the Fourth Proportional to 64,079.10, 88,422.84 and 35,784.18

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Solution

The fourth proportional to 64,079.10, 88,422.84 and 35,784.18 is: 49,378.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,079.10 : 88,422.84 = 35,784.18 : x
  2. Step 2: Convert to fraction form
    64,079.10/88,422.84 = 35,784.18/x
  3. Step 3: Cross multiply
    64,079.10x = 88,422.84 × 35,784.18
  4. Step 4: Simplify right side
    64,079.10x = 3,164,138,822.67
  5. Step 5: Solve for x
    x = 3,164,138,822.67/64,079.10
  6. Step 6: Final answer
    x = 49,378.64

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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.