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Finding the Fourth Proportional to 2,666.99, 3,681.24 and 1,548.20

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Solution

The fourth proportional to 2,666.99, 3,681.24 and 1,548.20 is: 2,136.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,666.99 : 3,681.24 = 1,548.20 : x
  2. Step 2: Convert to fraction form
    2,666.99/3,681.24 = 1,548.20/x
  3. Step 3: Cross multiply
    2,666.99x = 3,681.24 × 1,548.20
  4. Step 4: Simplify right side
    2,666.99x = 5,699,277.36
  5. Step 5: Solve for x
    x = 5,699,277.36/2,666.99
  6. Step 6: Final answer
    x = 2,136.97

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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.