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Finding the Fourth Proportional to 85,794.59, 128,648.01 and 35,861.06

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Solution

The fourth proportional to 85,794.59, 128,648.01 and 35,861.06 is: 53,773.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,794.59 : 128,648.01 = 35,861.06 : x
  2. Step 2: Convert to fraction form
    85,794.59/128,648.01 = 35,861.06/x
  3. Step 3: Cross multiply
    85,794.59x = 128,648.01 × 35,861.06
  4. Step 4: Simplify right side
    85,794.59x = 4,613,454,005.49
  5. Step 5: Solve for x
    x = 4,613,454,005.49/85,794.59
  6. Step 6: Final answer
    x = 53,773.25

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1.5x scale

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.