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Finding the Fourth Proportional to 9,449.66, 13,042.95 and 5,672.99

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Solution

The fourth proportional to 9,449.66, 13,042.95 and 5,672.99 is: 7,830.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,449.66 : 13,042.95 = 5,672.99 : x
  2. Step 2: Convert to fraction form
    9,449.66/13,042.95 = 5,672.99/x
  3. Step 3: Cross multiply
    9,449.66x = 13,042.95 × 5,672.99
  4. Step 4: Simplify right side
    9,449.66x = 73,992,478.84
  5. Step 5: Solve for x
    x = 73,992,478.84/9,449.66
  6. Step 6: Final answer
    x = 7,830.17

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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.