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Finding the Fourth Proportional to 7,903.37, 10,907.80 and 4,716.80

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Solution

The fourth proportional to 7,903.37, 10,907.80 and 4,716.80 is: 6,509.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,903.37 : 10,907.80 = 4,716.80 : x
  2. Step 2: Convert to fraction form
    7,903.37/10,907.80 = 4,716.80/x
  3. Step 3: Cross multiply
    7,903.37x = 10,907.80 × 4,716.80
  4. Step 4: Simplify right side
    7,903.37x = 51,449,946.97
  5. Step 5: Solve for x
    x = 51,449,946.97/7,903.37
  6. Step 6: Final answer
    x = 6,509.87

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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.