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Finding the Fourth Proportional to 4,985.89, 7,477.07 and 1,474.96

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Solution

The fourth proportional to 4,985.89, 7,477.07 and 1,474.96 is: 2,211.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,985.89 : 7,477.07 = 1,474.96 : x
  2. Step 2: Convert to fraction form
    4,985.89/7,477.07 = 1,474.96/x
  3. Step 3: Cross multiply
    4,985.89x = 7,477.07 × 1,474.96
  4. Step 4: Simplify right side
    4,985.89x = 11,028,334.41
  5. Step 5: Solve for x
    x = 11,028,334.41/4,985.89
  6. Step 6: Final answer
    x = 2,211.91

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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.