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Finding the Fourth Proportional to 9,047.76, 13,571.81 and 2,807.98

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Solution

The fourth proportional to 9,047.76, 13,571.81 and 2,807.98 is: 4,212.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,047.76 : 13,571.81 = 2,807.98 : x
  2. Step 2: Convert to fraction form
    9,047.76/13,571.81 = 2,807.98/x
  3. Step 3: Cross multiply
    9,047.76x = 13,571.81 × 2,807.98
  4. Step 4: Simplify right side
    9,047.76x = 38,109,303.18
  5. Step 5: Solve for x
    x = 38,109,303.18/9,047.76
  6. Step 6: Final answer
    x = 4,212.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.