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Finding the Fourth Proportional to 8,476.60, 11,671.60 and 7,530.74

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Solution

The fourth proportional to 8,476.60, 11,671.60 and 7,530.74 is: 10,369.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,476.60 : 11,671.60 = 7,530.74 : x
  2. Step 2: Convert to fraction form
    8,476.60/11,671.60 = 7,530.74/x
  3. Step 3: Cross multiply
    8,476.60x = 11,671.60 × 7,530.74
  4. Step 4: Simplify right side
    8,476.60x = 87,895,784.98
  5. Step 5: Solve for x
    x = 87,895,784.98/8,476.60
  6. Step 6: Final answer
    x = 10,369.23

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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.