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Finding the Fourth Proportional to 8,396.58, 11,588.58 and 5,210.45

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Solution

The fourth proportional to 8,396.58, 11,588.58 and 5,210.45 is: 7,191.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,396.58 : 11,588.58 = 5,210.45 : x
  2. Step 2: Convert to fraction form
    8,396.58/11,588.58 = 5,210.45/x
  3. Step 3: Cross multiply
    8,396.58x = 11,588.58 × 5,210.45
  4. Step 4: Simplify right side
    8,396.58x = 60,381,658.72
  5. Step 5: Solve for x
    x = 60,381,658.72/8,396.58
  6. Step 6: Final answer
    x = 7,191.22

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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.