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Finding the Fourth Proportional to 30,625.83, 45,909.59 and 9,834.75

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Solution

The fourth proportional to 30,625.83, 45,909.59 and 9,834.75 is: 14,742.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,625.83 : 45,909.59 = 9,834.75 : x
  2. Step 2: Convert to fraction form
    30,625.83/45,909.59 = 9,834.75/x
  3. Step 3: Cross multiply
    30,625.83x = 45,909.59 × 9,834.75
  4. Step 4: Simplify right side
    30,625.83x = 451,509,291.08
  5. Step 5: Solve for x
    x = 451,509,291.08/30,625.83
  6. Step 6: Final answer
    x = 14,742.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.