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Finding the Fourth Proportional to 56,880.28, 78,479.04 and 36,738.01

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Solution

The fourth proportional to 56,880.28, 78,479.04 and 36,738.01 is: 50,688.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,880.28 : 78,479.04 = 36,738.01 : x
  2. Step 2: Convert to fraction form
    56,880.28/78,479.04 = 36,738.01/x
  3. Step 3: Cross multiply
    56,880.28x = 78,479.04 × 36,738.01
  4. Step 4: Simplify right side
    56,880.28x = 2,883,163,756.31
  5. Step 5: Solve for x
    x = 2,883,163,756.31/56,880.28
  6. Step 6: Final answer
    x = 50,688.28

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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.