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Finding the Fourth Proportional to 8,555.40, 12,833.10 and 5,602.95

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Solution

The fourth proportional to 8,555.40, 12,833.10 and 5,602.95 is: 8,404.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,555.40 : 12,833.10 = 5,602.95 : x
  2. Step 2: Convert to fraction form
    8,555.40/12,833.10 = 5,602.95/x
  3. Step 3: Cross multiply
    8,555.40x = 12,833.10 × 5,602.95
  4. Step 4: Simplify right side
    8,555.40x = 71,903,217.65
  5. Step 5: Solve for x
    x = 71,903,217.65/8,555.40
  6. Step 6: Final answer
    x = 8,404.43

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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.