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Finding the Fourth Proportional to 14,938.40, 22,412.06 and 8,369.30

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Solution

The fourth proportional to 14,938.40, 22,412.06 and 8,369.30 is: 12,556.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,938.40 : 22,412.06 = 8,369.30 : x
  2. Step 2: Convert to fraction form
    14,938.40/22,412.06 = 8,369.30/x
  3. Step 3: Cross multiply
    14,938.40x = 22,412.06 × 8,369.30
  4. Step 4: Simplify right side
    14,938.40x = 187,573,253.76
  5. Step 5: Solve for x
    x = 187,573,253.76/14,938.40
  6. Step 6: Final answer
    x = 12,556.45

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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.