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Finding the Fourth Proportional to 9,798.88, 14,698.32 and 2,878.24

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Solution

The fourth proportional to 9,798.88, 14,698.32 and 2,878.24 is: 4,317.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,798.88 : 14,698.32 = 2,878.24 : x
  2. Step 2: Convert to fraction form
    9,798.88/14,698.32 = 2,878.24/x
  3. Step 3: Cross multiply
    9,798.88x = 14,698.32 × 2,878.24
  4. Step 4: Simplify right side
    9,798.88x = 42,305,292.56
  5. Step 5: Solve for x
    x = 42,305,292.56/9,798.88
  6. Step 6: Final answer
    x = 4,317.36

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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.