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Finding the Fourth Proportional to 15,726.96, 21,701.52 and 9,767.52

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Solution

The fourth proportional to 15,726.96, 21,701.52 and 9,767.52 is: 13,478.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,726.96 : 21,701.52 = 9,767.52 : x
  2. Step 2: Convert to fraction form
    15,726.96/21,701.52 = 9,767.52/x
  3. Step 3: Cross multiply
    15,726.96x = 21,701.52 × 9,767.52
  4. Step 4: Simplify right side
    15,726.96x = 211,970,030.63
  5. Step 5: Solve for x
    x = 211,970,030.63/15,726.96
  6. Step 6: Final answer
    x = 13,478.13

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.