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Finding the Fourth Proportional to 17,698.40, 26,547.80 and 4,550.42

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Solution

The fourth proportional to 17,698.40, 26,547.80 and 4,550.42 is: 6,825.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,698.40 : 26,547.80 = 4,550.42 : x
  2. Step 2: Convert to fraction form
    17,698.40/26,547.80 = 4,550.42/x
  3. Step 3: Cross multiply
    17,698.40x = 26,547.80 × 4,550.42
  4. Step 4: Simplify right side
    17,698.40x = 120,803,518.71
  5. Step 5: Solve for x
    x = 120,803,518.71/17,698.40
  6. Step 6: Final answer
    x = 6,825.68

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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.