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Finding the Fourth Proportional to 13,794.65, 19,036.74 and 7,506.89

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Solution

The fourth proportional to 13,794.65, 19,036.74 and 7,506.89 is: 10,359.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,794.65 : 19,036.74 = 7,506.89 : x
  2. Step 2: Convert to fraction form
    13,794.65/19,036.74 = 7,506.89/x
  3. Step 3: Cross multiply
    13,794.65x = 19,036.74 × 7,506.89
  4. Step 4: Simplify right side
    13,794.65x = 142,906,617.95
  5. Step 5: Solve for x
    x = 142,906,617.95/13,794.65
  6. Step 6: Final answer
    x = 10,359.57

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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.