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Finding the Fourth Proportional to 54,272.88, 74,905.58 and 37,263.20

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Solution

The fourth proportional to 54,272.88, 74,905.58 and 37,263.20 is: 51,429.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,272.88 : 74,905.58 = 37,263.20 : x
  2. Step 2: Convert to fraction form
    54,272.88/74,905.58 = 37,263.20/x
  3. Step 3: Cross multiply
    54,272.88x = 74,905.58 × 37,263.20
  4. Step 4: Simplify right side
    54,272.88x = 2,791,221,608.66
  5. Step 5: Solve for x
    x = 2,791,221,608.66/54,272.88
  6. Step 6: Final answer
    x = 51,429.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.