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Finding the Fourth Proportional to 61,981.60, 93,058.80 and 38,653.60

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Solution

The fourth proportional to 61,981.60, 93,058.80 and 38,653.60 is: 58,034.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,981.60 : 93,058.80 = 38,653.60 : x
  2. Step 2: Convert to fraction form
    61,981.60/93,058.80 = 38,653.60/x
  3. Step 3: Cross multiply
    61,981.60x = 93,058.80 × 38,653.60
  4. Step 4: Simplify right side
    61,981.60x = 3,597,057,631.68
  5. Step 5: Solve for x
    x = 3,597,057,631.68/61,981.60
  6. Step 6: Final answer
    x = 58,034.28

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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.