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Finding the Fourth Proportional to 22,416.80, 30,948.52 and 19,925.60

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Solution

The fourth proportional to 22,416.80, 30,948.52 and 19,925.60 is: 27,509.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,416.80 : 30,948.52 = 19,925.60 : x
  2. Step 2: Convert to fraction form
    22,416.80/30,948.52 = 19,925.60/x
  3. Step 3: Cross multiply
    22,416.80x = 30,948.52 × 19,925.60
  4. Step 4: Simplify right side
    22,416.80x = 616,667,830.11
  5. Step 5: Solve for x
    x = 616,667,830.11/22,416.80
  6. Step 6: Final answer
    x = 27,509.18

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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.