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Finding the Fourth Proportional to 22,007.58, 30,328.47 and 15,709.02

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Solution

The fourth proportional to 22,007.58, 30,328.47 and 15,709.02 is: 21,648.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,007.58 : 30,328.47 = 15,709.02 : x
  2. Step 2: Convert to fraction form
    22,007.58/30,328.47 = 15,709.02/x
  3. Step 3: Cross multiply
    22,007.58x = 30,328.47 × 15,709.02
  4. Step 4: Simplify right side
    22,007.58x = 476,430,541.80
  5. Step 5: Solve for x
    x = 476,430,541.80/22,007.58
  6. Step 6: Final answer
    x = 21,648.47

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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.