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Finding the Fourth Proportional to 9,938.51, 14,906.99 and 4,392.04

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Solution

The fourth proportional to 9,938.51, 14,906.99 and 4,392.04 is: 6,587.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,938.51 : 14,906.99 = 4,392.04 : x
  2. Step 2: Convert to fraction form
    9,938.51/14,906.99 = 4,392.04/x
  3. Step 3: Cross multiply
    9,938.51x = 14,906.99 × 4,392.04
  4. Step 4: Simplify right side
    9,938.51x = 65,472,070.07
  5. Step 5: Solve for x
    x = 65,472,070.07/9,938.51
  6. Step 6: Final answer
    x = 6,587.71

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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.