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Finding the Fourth Proportional to 14,940.17, 20,608.88 and 9,341.45

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Solution

The fourth proportional to 14,940.17, 20,608.88 and 9,341.45 is: 12,885.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,940.17 : 20,608.88 = 9,341.45 : x
  2. Step 2: Convert to fraction form
    14,940.17/20,608.88 = 9,341.45/x
  3. Step 3: Cross multiply
    14,940.17x = 20,608.88 × 9,341.45
  4. Step 4: Simplify right side
    14,940.17x = 192,516,719.03
  5. Step 5: Solve for x
    x = 192,516,719.03/14,940.17
  6. Step 6: Final answer
    x = 12,885.85

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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.