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Finding the Fourth Proportional to 29,345.64, 43,980.72 and 13,323.48

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Solution

The fourth proportional to 29,345.64, 43,980.72 and 13,323.48 is: 19,968.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,345.64 : 43,980.72 = 13,323.48 : x
  2. Step 2: Convert to fraction form
    29,345.64/43,980.72 = 13,323.48/x
  3. Step 3: Cross multiply
    29,345.64x = 43,980.72 × 13,323.48
  4. Step 4: Simplify right side
    29,345.64x = 585,976,243.31
  5. Step 5: Solve for x
    x = 585,976,243.31/29,345.64
  6. Step 6: Final answer
    x = 19,968.09

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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.