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Finding the Fourth Proportional to 64,860.81, 89,512.11 and 36,568.32

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Solution

The fourth proportional to 64,860.81, 89,512.11 and 36,568.32 is: 50,466.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,860.81 : 89,512.11 = 36,568.32 : x
  2. Step 2: Convert to fraction form
    64,860.81/89,512.11 = 36,568.32/x
  3. Step 3: Cross multiply
    64,860.81x = 89,512.11 × 36,568.32
  4. Step 4: Simplify right side
    64,860.81x = 3,273,307,482.36
  5. Step 5: Solve for x
    x = 3,273,307,482.36/64,860.81
  6. Step 6: Final answer
    x = 50,466.65

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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.