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Finding the Fourth Proportional to 14,672.70, 22,009.05 and 12,210.30

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Solution

The fourth proportional to 14,672.70, 22,009.05 and 12,210.30 is: 18,315.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,672.70 : 22,009.05 = 12,210.30 : x
  2. Step 2: Convert to fraction form
    14,672.70/22,009.05 = 12,210.30/x
  3. Step 3: Cross multiply
    14,672.70x = 22,009.05 × 12,210.30
  4. Step 4: Simplify right side
    14,672.70x = 268,737,103.22
  5. Step 5: Solve for x
    x = 268,737,103.22/14,672.70
  6. Step 6: Final answer
    x = 18,315.45

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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.