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Finding the Fourth Proportional to 9,056.70, 13,585.05 and 8,343.90

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Solution

The fourth proportional to 9,056.70, 13,585.05 and 8,343.90 is: 12,515.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,056.70 : 13,585.05 = 8,343.90 : x
  2. Step 2: Convert to fraction form
    9,056.70/13,585.05 = 8,343.90/x
  3. Step 3: Cross multiply
    9,056.70x = 13,585.05 × 8,343.90
  4. Step 4: Simplify right side
    9,056.70x = 113,352,298.70
  5. Step 5: Solve for x
    x = 113,352,298.70/9,056.70
  6. Step 6: Final answer
    x = 12,515.85

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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.