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Finding the Fourth Proportional to 56,611.84, 78,050.88 and 36,432.64

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Solution

The fourth proportional to 56,611.84, 78,050.88 and 36,432.64 is: 50,229.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,611.84 : 78,050.88 = 36,432.64 : x
  2. Step 2: Convert to fraction form
    56,611.84/78,050.88 = 36,432.64/x
  3. Step 3: Cross multiply
    56,611.84x = 78,050.88 × 36,432.64
  4. Step 4: Simplify right side
    56,611.84x = 2,843,599,612.72
  5. Step 5: Solve for x
    x = 2,843,599,612.72/56,611.84
  6. Step 6: Final answer
    x = 50,229.77

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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.