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Finding the Fourth Proportional to 14,392.67, 19,865.15 and 9,348.11

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Solution

The fourth proportional to 14,392.67, 19,865.15 and 9,348.11 is: 12,902.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,392.67 : 19,865.15 = 9,348.11 : x
  2. Step 2: Convert to fraction form
    14,392.67/19,865.15 = 9,348.11/x
  3. Step 3: Cross multiply
    14,392.67x = 19,865.15 × 9,348.11
  4. Step 4: Simplify right side
    14,392.67x = 185,701,461.30
  5. Step 5: Solve for x
    x = 185,701,461.30/14,392.67
  6. Step 6: Final answer
    x = 12,902.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.