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Finding the Fourth Proportional to 63,155.15, 87,154.83 and 34,860.86

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Solution

The fourth proportional to 63,155.15, 87,154.83 and 34,860.86 is: 48,108.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,155.15 : 87,154.83 = 34,860.86 : x
  2. Step 2: Convert to fraction form
    63,155.15/87,154.83 = 34,860.86/x
  3. Step 3: Cross multiply
    63,155.15x = 87,154.83 × 34,860.86
  4. Step 4: Simplify right side
    63,155.15x = 3,038,292,326.95
  5. Step 5: Solve for x
    x = 3,038,292,326.95/63,155.15
  6. Step 6: Final answer
    x = 48,108.39

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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.