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Finding the Fourth Proportional to 7,655.70, 10,571.61 and 4,828.13

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Solution

The fourth proportional to 7,655.70, 10,571.61 and 4,828.13 is: 6,667.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,655.70 : 10,571.61 = 4,828.13 : x
  2. Step 2: Convert to fraction form
    7,655.70/10,571.61 = 4,828.13/x
  3. Step 3: Cross multiply
    7,655.70x = 10,571.61 × 4,828.13
  4. Step 4: Simplify right side
    7,655.70x = 51,041,107.39
  5. Step 5: Solve for x
    x = 51,041,107.39/7,655.70
  6. Step 6: Final answer
    x = 6,667.07

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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.