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Finding the Fourth Proportional to 7,681.08, 10,550.43 and 7,533.48

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Solution

The fourth proportional to 7,681.08, 10,550.43 and 7,533.48 is: 10,347.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,681.08 : 10,550.43 = 7,533.48 : x
  2. Step 2: Convert to fraction form
    7,681.08/10,550.43 = 7,533.48/x
  3. Step 3: Cross multiply
    7,681.08x = 10,550.43 × 7,533.48
  4. Step 4: Simplify right side
    7,681.08x = 79,481,453.40
  5. Step 5: Solve for x
    x = 79,481,453.40/7,681.08
  6. Step 6: Final answer
    x = 10,347.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.