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Finding the Fourth Proportional to 29,329.64, 43,994.54 and 7,142.99

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Solution

The fourth proportional to 29,329.64, 43,994.54 and 7,142.99 is: 10,714.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,329.64 : 43,994.54 = 7,142.99 : x
  2. Step 2: Convert to fraction form
    29,329.64/43,994.54 = 7,142.99/x
  3. Step 3: Cross multiply
    29,329.64x = 43,994.54 × 7,142.99
  4. Step 4: Simplify right side
    29,329.64x = 314,252,357.16
  5. Step 5: Solve for x
    x = 314,252,357.16/29,329.64
  6. Step 6: Final answer
    x = 10,714.50

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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.