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Finding the Fourth Proportional to 30,556.66, 45,834.62 and 8,370.02

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Solution

The fourth proportional to 30,556.66, 45,834.62 and 8,370.02 is: 12,554.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,556.66 : 45,834.62 = 8,370.02 : x
  2. Step 2: Convert to fraction form
    30,556.66/45,834.62 = 8,370.02/x
  3. Step 3: Cross multiply
    30,556.66x = 45,834.62 × 8,370.02
  4. Step 4: Simplify right side
    30,556.66x = 383,636,686.09
  5. Step 5: Solve for x
    x = 383,636,686.09/30,556.66
  6. Step 6: Final answer
    x = 12,554.93

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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.