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Finding the Fourth Proportional to 4,897.74, 7,347.54 and 1,611.78

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Solution

The fourth proportional to 4,897.74, 7,347.54 and 1,611.78 is: 2,417.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,897.74 : 7,347.54 = 1,611.78 : x
  2. Step 2: Convert to fraction form
    4,897.74/7,347.54 = 1,611.78/x
  3. Step 3: Cross multiply
    4,897.74x = 7,347.54 × 1,611.78
  4. Step 4: Simplify right side
    4,897.74x = 11,842,609.96
  5. Step 5: Solve for x
    x = 11,842,609.96/4,897.74
  6. Step 6: Final answer
    x = 2,417.97

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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.