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Finding the Fourth Proportional to 29,798.40, 41,108.76 and 18,464.88

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Solution

The fourth proportional to 29,798.40, 41,108.76 and 18,464.88 is: 25,473.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,798.40 : 41,108.76 = 18,464.88 : x
  2. Step 2: Convert to fraction form
    29,798.40/41,108.76 = 18,464.88/x
  3. Step 3: Cross multiply
    29,798.40x = 41,108.76 × 18,464.88
  4. Step 4: Simplify right side
    29,798.40x = 759,068,320.35
  5. Step 5: Solve for x
    x = 759,068,320.35/29,798.40
  6. Step 6: Final answer
    x = 25,473.46

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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.