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Finding the Fourth Proportional to 56,599.75, 78,161.12 and 36,492.72

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Solution

The fourth proportional to 56,599.75, 78,161.12 and 36,492.72 is: 50,394.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,599.75 : 78,161.12 = 36,492.72 : x
  2. Step 2: Convert to fraction form
    56,599.75/78,161.12 = 36,492.72/x
  3. Step 3: Cross multiply
    56,599.75x = 78,161.12 × 36,492.72
  4. Step 4: Simplify right side
    56,599.75x = 2,852,311,867.05
  5. Step 5: Solve for x
    x = 2,852,311,867.05/56,599.75
  6. Step 6: Final answer
    x = 50,394.43

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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.