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Finding the Fourth Proportional to 8,798.69, 12,142.37 and 5,441.45

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Solution

The fourth proportional to 8,798.69, 12,142.37 and 5,441.45 is: 7,509.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,798.69 : 12,142.37 = 5,441.45 : x
  2. Step 2: Convert to fraction form
    8,798.69/12,142.37 = 5,441.45/x
  3. Step 3: Cross multiply
    8,798.69x = 12,142.37 × 5,441.45
  4. Step 4: Simplify right side
    8,798.69x = 66,072,052.13
  5. Step 5: Solve for x
    x = 66,072,052.13/8,798.69
  6. Step 6: Final answer
    x = 7,509.30

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.