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Finding the Fourth Proportional to 64,828.64, 89,462.16 and 36,534.32

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Solution

The fourth proportional to 64,828.64, 89,462.16 and 36,534.32 is: 50,416.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,828.64 : 89,462.16 = 36,534.32 : x
  2. Step 2: Convert to fraction form
    64,828.64/89,462.16 = 36,534.32/x
  3. Step 3: Cross multiply
    64,828.64x = 89,462.16 × 36,534.32
  4. Step 4: Simplify right side
    64,828.64x = 3,268,439,181.33
  5. Step 5: Solve for x
    x = 3,268,439,181.33/64,828.64
  6. Step 6: Final answer
    x = 50,416.59

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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.