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Finding the Fourth Proportional to 7,898.35, 10,899.59 and 4,361.56

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Solution

The fourth proportional to 7,898.35, 10,899.59 and 4,361.56 is: 6,018.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,898.35 : 10,899.59 = 4,361.56 : x
  2. Step 2: Convert to fraction form
    7,898.35/10,899.59 = 4,361.56/x
  3. Step 3: Cross multiply
    7,898.35x = 10,899.59 × 4,361.56
  4. Step 4: Simplify right side
    7,898.35x = 47,539,215.76
  5. Step 5: Solve for x
    x = 47,539,215.76/7,898.35
  6. Step 6: Final answer
    x = 6,018.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.