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Finding the Fourth Proportional to 8,043.40, 12,065.10 and 5,710.60

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Solution

The fourth proportional to 8,043.40, 12,065.10 and 5,710.60 is: 8,565.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,043.40 : 12,065.10 = 5,710.60 : x
  2. Step 2: Convert to fraction form
    8,043.40/12,065.10 = 5,710.60/x
  3. Step 3: Cross multiply
    8,043.40x = 12,065.10 × 5,710.60
  4. Step 4: Simplify right side
    8,043.40x = 68,898,960.06
  5. Step 5: Solve for x
    x = 68,898,960.06/8,043.40
  6. Step 6: Final answer
    x = 8,565.90

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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.