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Finding the Fourth Proportional to 11,698.58, 17,547.88 and 3,379.80

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Solution

The fourth proportional to 11,698.58, 17,547.88 and 3,379.80 is: 5,069.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,698.58 : 17,547.88 = 3,379.80 : x
  2. Step 2: Convert to fraction form
    11,698.58/17,547.88 = 3,379.80/x
  3. Step 3: Cross multiply
    11,698.58x = 17,547.88 × 3,379.80
  4. Step 4: Simplify right side
    11,698.58x = 59,308,324.82
  5. Step 5: Solve for x
    x = 59,308,324.82/11,698.58
  6. Step 6: Final answer
    x = 5,069.70

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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.