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Finding the Fourth Proportional to 5,912.70, 8,869.05 and 4,962.30

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Solution

The fourth proportional to 5,912.70, 8,869.05 and 4,962.30 is: 7,443.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,912.70 : 8,869.05 = 4,962.30 : x
  2. Step 2: Convert to fraction form
    5,912.70/8,869.05 = 4,962.30/x
  3. Step 3: Cross multiply
    5,912.70x = 8,869.05 × 4,962.30
  4. Step 4: Simplify right side
    5,912.70x = 44,010,886.82
  5. Step 5: Solve for x
    x = 44,010,886.82/5,912.70
  6. Step 6: Final answer
    x = 7,443.45

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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.