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Finding the Fourth Proportional to 65,068.80, 89,794.96 and 35,260.80

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Solution

The fourth proportional to 65,068.80, 89,794.96 and 35,260.80 is: 48,659.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,068.80 : 89,794.96 = 35,260.80 : x
  2. Step 2: Convert to fraction form
    65,068.80/89,794.96 = 35,260.80/x
  3. Step 3: Cross multiply
    65,068.80x = 89,794.96 × 35,260.80
  4. Step 4: Simplify right side
    65,068.80x = 3,166,242,125.57
  5. Step 5: Solve for x
    x = 3,166,242,125.57/65,068.80
  6. Step 6: Final answer
    x = 48,659.91

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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.