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Finding the Fourth Proportional to 37,953.45, 52,374.42 and 20,957.40

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Solution

The fourth proportional to 37,953.45, 52,374.42 and 20,957.40 is: 28,920.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,953.45 : 52,374.42 = 20,957.40 : x
  2. Step 2: Convert to fraction form
    37,953.45/52,374.42 = 20,957.40/x
  3. Step 3: Cross multiply
    37,953.45x = 52,374.42 × 20,957.40
  4. Step 4: Simplify right side
    37,953.45x = 1,097,631,669.71
  5. Step 5: Solve for x
    x = 1,097,631,669.71/37,953.45
  6. Step 6: Final answer
    x = 28,920.47

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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.