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Finding the Fourth Proportional to 14,890.60, 22,335.90 and 10,214.20

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Solution

The fourth proportional to 14,890.60, 22,335.90 and 10,214.20 is: 15,321.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,890.60 : 22,335.90 = 10,214.20 : x
  2. Step 2: Convert to fraction form
    14,890.60/22,335.90 = 10,214.20/x
  3. Step 3: Cross multiply
    14,890.60x = 22,335.90 × 10,214.20
  4. Step 4: Simplify right side
    14,890.60x = 228,143,349.78
  5. Step 5: Solve for x
    x = 228,143,349.78/14,890.60
  6. Step 6: Final answer
    x = 15,321.30

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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.