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Finding the Fourth Proportional to 9,042.60, 13,563.90 and 5,586.60

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Solution

The fourth proportional to 9,042.60, 13,563.90 and 5,586.60 is: 8,379.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,042.60 : 13,563.90 = 5,586.60 : x
  2. Step 2: Convert to fraction form
    9,042.60/13,563.90 = 5,586.60/x
  3. Step 3: Cross multiply
    9,042.60x = 13,563.90 × 5,586.60
  4. Step 4: Simplify right side
    9,042.60x = 75,776,083.74
  5. Step 5: Solve for x
    x = 75,776,083.74/9,042.60
  6. Step 6: Final answer
    x = 8,379.90

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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.