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Finding the Fourth Proportional to 53,894.25, 74,374.07 and 31,538.25

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Solution

The fourth proportional to 53,894.25, 74,374.07 and 31,538.25 is: 43,522.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,894.25 : 74,374.07 = 31,538.25 : x
  2. Step 2: Convert to fraction form
    53,894.25/74,374.07 = 31,538.25/x
  3. Step 3: Cross multiply
    53,894.25x = 74,374.07 × 31,538.25
  4. Step 4: Simplify right side
    53,894.25x = 2,345,627,855.49
  5. Step 5: Solve for x
    x = 2,345,627,855.49/53,894.25
  6. Step 6: Final answer
    x = 43,522.79

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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.