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Finding the Fourth Proportional to 14,606.30, 21,909.12 and 9,914.60

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Solution

The fourth proportional to 14,606.30, 21,909.12 and 9,914.60 is: 14,871.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,606.30 : 21,909.12 = 9,914.60 : x
  2. Step 2: Convert to fraction form
    14,606.30/21,909.12 = 9,914.60/x
  3. Step 3: Cross multiply
    14,606.30x = 21,909.12 × 9,914.60
  4. Step 4: Simplify right side
    14,606.30x = 217,220,161.15
  5. Step 5: Solve for x
    x = 217,220,161.15/14,606.30
  6. Step 6: Final answer
    x = 14,871.68

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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.