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Finding the Fourth Proportional to 8,394.80, 12,586.72 and 4,697.44

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Solution

The fourth proportional to 8,394.80, 12,586.72 and 4,697.44 is: 7,043.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,394.80 : 12,586.72 = 4,697.44 : x
  2. Step 2: Convert to fraction form
    8,394.80/12,586.72 = 4,697.44/x
  3. Step 3: Cross multiply
    8,394.80x = 12,586.72 × 4,697.44
  4. Step 4: Simplify right side
    8,394.80x = 59,125,362.00
  5. Step 5: Solve for x
    x = 59,125,362.00/8,394.80
  6. Step 6: Final answer
    x = 7,043.09

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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.