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Finding the Fourth Proportional to 66,783.66, 92,161.44 and 36,568.98

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Solution

The fourth proportional to 66,783.66, 92,161.44 and 36,568.98 is: 50,465.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,783.66 : 92,161.44 = 36,568.98 : x
  2. Step 2: Convert to fraction form
    66,783.66/92,161.44 = 36,568.98/x
  3. Step 3: Cross multiply
    66,783.66x = 92,161.44 × 36,568.98
  4. Step 4: Simplify right side
    66,783.66x = 3,370,249,856.13
  5. Step 5: Solve for x
    x = 3,370,249,856.13/66,783.66
  6. Step 6: Final answer
    x = 50,465.19

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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.