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Finding the Fourth Proportional to 8,671.15, 12,996.30 and 4,975.93

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Solution

The fourth proportional to 8,671.15, 12,996.30 and 4,975.93 is: 7,457.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,671.15 : 12,996.30 = 4,975.93 : x
  2. Step 2: Convert to fraction form
    8,671.15/12,996.30 = 4,975.93/x
  3. Step 3: Cross multiply
    8,671.15x = 12,996.30 × 4,975.93
  4. Step 4: Simplify right side
    8,671.15x = 64,668,679.06
  5. Step 5: Solve for x
    x = 64,668,679.06/8,671.15
  6. Step 6: Final answer
    x = 7,457.91

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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.