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Finding the Fourth Proportional to 64,546.64, 89,074.15 and 35,866.18

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Solution

The fourth proportional to 64,546.64, 89,074.15 and 35,866.18 is: 49,495.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,546.64 : 89,074.15 = 35,866.18 : x
  2. Step 2: Convert to fraction form
    64,546.64/89,074.15 = 35,866.18/x
  3. Step 3: Cross multiply
    64,546.64x = 89,074.15 × 35,866.18
  4. Step 4: Simplify right side
    64,546.64x = 3,194,749,497.25
  5. Step 5: Solve for x
    x = 3,194,749,497.25/64,546.64
  6. Step 6: Final answer
    x = 49,495.21

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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.