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Finding the Fourth Proportional to 34,043.60, 46,981.08 and 20,612

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Solution

The fourth proportional to 34,043.60, 46,981.08 and 20,612 is: 28,445.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,043.60 : 46,981.08 = 20,612 : x
  2. Step 2: Convert to fraction form
    34,043.60/46,981.08 = 20,612/x
  3. Step 3: Cross multiply
    34,043.60x = 46,981.08 × 20,612
  4. Step 4: Simplify right side
    34,043.60x = 968,374,020.96
  5. Step 5: Solve for x
    x = 968,374,020.96/34,043.60
  6. Step 6: Final answer
    x = 28,445.11

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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.