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Finding the Fourth Proportional to 29,384.88, 40,539.60 and 16,802.88

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Solution

The fourth proportional to 29,384.88, 40,539.60 and 16,802.88 is: 23,181.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,384.88 : 40,539.60 = 16,802.88 : x
  2. Step 2: Convert to fraction form
    29,384.88/40,539.60 = 16,802.88/x
  3. Step 3: Cross multiply
    29,384.88x = 40,539.60 × 16,802.88
  4. Step 4: Simplify right side
    29,384.88x = 681,182,034.05
  5. Step 5: Solve for x
    x = 681,182,034.05/29,384.88
  6. Step 6: Final answer
    x = 23,181.38

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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.