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Finding the Fourth Proportional to 65,892.32, 98,838.64 and 30,856.60

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Solution

The fourth proportional to 65,892.32, 98,838.64 and 30,856.60 is: 46,284.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,892.32 : 98,838.64 = 30,856.60 : x
  2. Step 2: Convert to fraction form
    65,892.32/98,838.64 = 30,856.60/x
  3. Step 3: Cross multiply
    65,892.32x = 98,838.64 × 30,856.60
  4. Step 4: Simplify right side
    65,892.32x = 3,049,824,379.02
  5. Step 5: Solve for x
    x = 3,049,824,379.02/65,892.32
  6. Step 6: Final answer
    x = 46,284.97

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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.