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Finding the Fourth Proportional to 37,305.25, 55,957.88 and 12,681.25

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Solution

The fourth proportional to 37,305.25, 55,957.88 and 12,681.25 is: 19,021.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,305.25 : 55,957.88 = 12,681.25 : x
  2. Step 2: Convert to fraction form
    37,305.25/55,957.88 = 12,681.25/x
  3. Step 3: Cross multiply
    37,305.25x = 55,957.88 × 12,681.25
  4. Step 4: Simplify right side
    37,305.25x = 709,615,802.34
  5. Step 5: Solve for x
    x = 709,615,802.34/37,305.25
  6. Step 6: Final answer
    x = 19,021.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.