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Finding the Fourth Proportional to 64,264.32, 88,724.16 and 50,889.60

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Solution

The fourth proportional to 64,264.32, 88,724.16 and 50,889.60 is: 70,258.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,264.32 : 88,724.16 = 50,889.60 : x
  2. Step 2: Convert to fraction form
    64,264.32/88,724.16 = 50,889.60/x
  3. Step 3: Cross multiply
    64,264.32x = 88,724.16 × 50,889.60
  4. Step 4: Simplify right side
    64,264.32x = 4,515,137,012.74
  5. Step 5: Solve for x
    x = 4,515,137,012.74/64,264.32
  6. Step 6: Final answer
    x = 70,258.85

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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.