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Finding the Fourth Proportional to 63,326.78, 87,390.60 and 35,031.86

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Solution

The fourth proportional to 63,326.78, 87,390.60 and 35,031.86 is: 48,343.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,326.78 : 87,390.60 = 35,031.86 : x
  2. Step 2: Convert to fraction form
    63,326.78/87,390.60 = 35,031.86/x
  3. Step 3: Cross multiply
    63,326.78x = 87,390.60 × 35,031.86
  4. Step 4: Simplify right side
    63,326.78x = 3,061,455,264.52
  5. Step 5: Solve for x
    x = 3,061,455,264.52/63,326.78
  6. Step 6: Final answer
    x = 48,343.77

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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.