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Finding the Fourth Proportional to 56,440.61, 77,940.72 and 36,332.39

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Solution

The fourth proportional to 56,440.61, 77,940.72 and 36,332.39 is: 50,172.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,440.61 : 77,940.72 = 36,332.39 : x
  2. Step 2: Convert to fraction form
    56,440.61/77,940.72 = 36,332.39/x
  3. Step 3: Cross multiply
    56,440.61x = 77,940.72 × 36,332.39
  4. Step 4: Simplify right side
    56,440.61x = 2,831,772,246.22
  5. Step 5: Solve for x
    x = 2,831,772,246.22/56,440.61
  6. Step 6: Final answer
    x = 50,172.61

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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.