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Finding the Fourth Proportional to 56,661.94, 78,183.66 and 32,787.19

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Solution

The fourth proportional to 56,661.94, 78,183.66 and 32,787.19 is: 45,240.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,661.94 : 78,183.66 = 32,787.19 : x
  2. Step 2: Convert to fraction form
    56,661.94/78,183.66 = 32,787.19/x
  3. Step 3: Cross multiply
    56,661.94x = 78,183.66 × 32,787.19
  4. Step 4: Simplify right side
    56,661.94x = 2,563,422,515.32
  5. Step 5: Solve for x
    x = 2,563,422,515.32/56,661.94
  6. Step 6: Final answer
    x = 45,240.64

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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.