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Finding the Fourth Proportional to 30,556.52, 45,834.82 and 8,370.09

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Solution

The fourth proportional to 30,556.52, 45,834.82 and 8,370.09 is: 12,555.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,556.52 : 45,834.82 = 8,370.09 : x
  2. Step 2: Convert to fraction form
    30,556.52/45,834.82 = 8,370.09/x
  3. Step 3: Cross multiply
    30,556.52x = 45,834.82 × 8,370.09
  4. Step 4: Simplify right side
    30,556.52x = 383,641,547.61
  5. Step 5: Solve for x
    x = 383,641,547.61/30,556.52
  6. Step 6: Final answer
    x = 12,555.15

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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.