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Finding the Fourth Proportional to 30,681.93, 45,955.44 and 25,356.59

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Solution

The fourth proportional to 30,681.93, 45,955.44 and 25,356.59 is: 37,979.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,681.93 : 45,955.44 = 25,356.59 : x
  2. Step 2: Convert to fraction form
    30,681.93/45,955.44 = 25,356.59/x
  3. Step 3: Cross multiply
    30,681.93x = 45,955.44 × 25,356.59
  4. Step 4: Simplify right side
    30,681.93x = 1,165,273,250.35
  5. Step 5: Solve for x
    x = 1,165,273,250.35/30,681.93
  6. Step 6: Final answer
    x = 37,979.14

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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.