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Finding the Fourth Proportional to 14,615.85, 21,910.62 and 5,253.68

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Solution

The fourth proportional to 14,615.85, 21,910.62 and 5,253.68 is: 7,875.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,615.85 : 21,910.62 = 5,253.68 : x
  2. Step 2: Convert to fraction form
    14,615.85/21,910.62 = 5,253.68/x
  3. Step 3: Cross multiply
    14,615.85x = 21,910.62 × 5,253.68
  4. Step 4: Simplify right side
    14,615.85x = 115,111,276.53
  5. Step 5: Solve for x
    x = 115,111,276.53/14,615.85
  6. Step 6: Final answer
    x = 7,875.78

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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.