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Finding the Fourth Proportional to 16,698.86, 25,048.28 and 7,458.38

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Solution

The fourth proportional to 16,698.86, 25,048.28 and 7,458.38 is: 11,187.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,698.86 : 25,048.28 = 7,458.38 : x
  2. Step 2: Convert to fraction form
    16,698.86/25,048.28 = 7,458.38/x
  3. Step 3: Cross multiply
    16,698.86x = 25,048.28 × 7,458.38
  4. Step 4: Simplify right side
    16,698.86x = 186,819,483.99
  5. Step 5: Solve for x
    x = 186,819,483.99/16,698.86
  6. Step 6: Final answer
    x = 11,187.56

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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.