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Finding the Fourth Proportional to 54,153.76, 74,748.08 and 31,498.08

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Solution

The fourth proportional to 54,153.76, 74,748.08 and 31,498.08 is: 43,476.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,153.76 : 74,748.08 = 31,498.08 : x
  2. Step 2: Convert to fraction form
    54,153.76/74,748.08 = 31,498.08/x
  3. Step 3: Cross multiply
    54,153.76x = 74,748.08 × 31,498.08
  4. Step 4: Simplify right side
    54,153.76x = 2,354,421,003.69
  5. Step 5: Solve for x
    x = 2,354,421,003.69/54,153.76
  6. Step 6: Final answer
    x = 43,476.59

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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.