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Finding the Fourth Proportional to 17,703.79, 26,533.80 and 10,661.65

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Solution

The fourth proportional to 17,703.79, 26,533.80 and 10,661.65 is: 15,979.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,703.79 : 26,533.80 = 10,661.65 : x
  2. Step 2: Convert to fraction form
    17,703.79/26,533.80 = 10,661.65/x
  3. Step 3: Cross multiply
    17,703.79x = 26,533.80 × 10,661.65
  4. Step 4: Simplify right side
    17,703.79x = 282,894,022.44
  5. Step 5: Solve for x
    x = 282,894,022.44/17,703.79
  6. Step 6: Final answer
    x = 15,979.29

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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.