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Finding the Fourth Proportional to 64,508.42, 89,016.70 and 36,208.64

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Solution

The fourth proportional to 64,508.42, 89,016.70 and 36,208.64 is: 49,965.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,508.42 : 89,016.70 = 36,208.64 : x
  2. Step 2: Convert to fraction form
    64,508.42/89,016.70 = 36,208.64/x
  3. Step 3: Cross multiply
    64,508.42x = 89,016.70 × 36,208.64
  4. Step 4: Simplify right side
    64,508.42x = 3,223,173,644.29
  5. Step 5: Solve for x
    x = 3,223,173,644.29/64,508.42
  6. Step 6: Final answer
    x = 49,965.16

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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.