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Finding the Fourth Proportional to 19,301.71, 28,948.21 and 9,804.41

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Solution

The fourth proportional to 19,301.71, 28,948.21 and 9,804.41 is: 14,704.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,301.71 : 28,948.21 = 9,804.41 : x
  2. Step 2: Convert to fraction form
    19,301.71/28,948.21 = 9,804.41/x
  3. Step 3: Cross multiply
    19,301.71x = 28,948.21 × 9,804.41
  4. Step 4: Simplify right side
    19,301.71x = 283,820,119.61
  5. Step 5: Solve for x
    x = 283,820,119.61/19,301.71
  6. Step 6: Final answer
    x = 14,704.40

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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.