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Finding the Fourth Proportional to 64,840.04, 89,479.54 and 36,546.20

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Solution

The fourth proportional to 64,840.04, 89,479.54 and 36,546.20 is: 50,433.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,840.04 : 89,479.54 = 36,546.20 : x
  2. Step 2: Convert to fraction form
    64,840.04/89,479.54 = 36,546.20/x
  3. Step 3: Cross multiply
    64,840.04x = 89,479.54 × 36,546.20
  4. Step 4: Simplify right side
    64,840.04x = 3,270,137,164.75
  5. Step 5: Solve for x
    x = 3,270,137,164.75/64,840.04
  6. Step 6: Final answer
    x = 50,433.92

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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.