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Finding the Fourth Proportional to 11,700.99, 17,551.44 and 3,810.06

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Solution

The fourth proportional to 11,700.99, 17,551.44 and 3,810.06 is: 5,715.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,700.99 : 17,551.44 = 3,810.06 : x
  2. Step 2: Convert to fraction form
    11,700.99/17,551.44 = 3,810.06/x
  3. Step 3: Cross multiply
    11,700.99x = 17,551.44 × 3,810.06
  4. Step 4: Simplify right side
    11,700.99x = 66,872,039.49
  5. Step 5: Solve for x
    x = 66,872,039.49/11,700.99
  6. Step 6: Final answer
    x = 5,715.08

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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.