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Finding the Fourth Proportional to 61,085.60, 84,294.16 and 35,930.24

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Solution

The fourth proportional to 61,085.60, 84,294.16 and 35,930.24 is: 49,581.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,085.60 : 84,294.16 = 35,930.24 : x
  2. Step 2: Convert to fraction form
    61,085.60/84,294.16 = 35,930.24/x
  3. Step 3: Cross multiply
    61,085.60x = 84,294.16 × 35,930.24
  4. Step 4: Simplify right side
    61,085.60x = 3,028,709,399.40
  5. Step 5: Solve for x
    x = 3,028,709,399.40/61,085.60
  6. Step 6: Final answer
    x = 49,581.40

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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.