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Finding the Fourth Proportional to 2,693.93, 3,717.58 and 1,515.00

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Solution

The fourth proportional to 2,693.93, 3,717.58 and 1,515.00 is: 2,090.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,693.93 : 3,717.58 = 1,515.00 : x
  2. Step 2: Convert to fraction form
    2,693.93/3,717.58 = 1,515.00/x
  3. Step 3: Cross multiply
    2,693.93x = 3,717.58 × 1,515.00
  4. Step 4: Simplify right side
    2,693.93x = 5,632,107.54
  5. Step 5: Solve for x
    x = 5,632,107.54/2,693.93
  6. Step 6: Final answer
    x = 2,090.67

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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.