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Finding the Fourth Proportional to 3,798.74, 5,698.08 and 1,332.99

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Solution

The fourth proportional to 3,798.74, 5,698.08 and 1,332.99 is: 1,999.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,798.74 : 5,698.08 = 1,332.99 : x
  2. Step 2: Convert to fraction form
    3,798.74/5,698.08 = 1,332.99/x
  3. Step 3: Cross multiply
    3,798.74x = 5,698.08 × 1,332.99
  4. Step 4: Simplify right side
    3,798.74x = 7,595,483.66
  5. Step 5: Solve for x
    x = 7,595,483.66/3,798.74
  6. Step 6: Final answer
    x = 1,999.47

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Half scale
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Double scale
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Similar ratio
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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.