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Finding the Fourth Proportional to 29,390.84, 40,439.22 and 25,399.16

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Solution

The fourth proportional to 29,390.84, 40,439.22 and 25,399.16 is: 34,947.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,390.84 : 40,439.22 = 25,399.16 : x
  2. Step 2: Convert to fraction form
    29,390.84/40,439.22 = 25,399.16/x
  3. Step 3: Cross multiply
    29,390.84x = 40,439.22 × 25,399.16
  4. Step 4: Simplify right side
    29,390.84x = 1,027,122,219.06
  5. Step 5: Solve for x
    x = 1,027,122,219.06/29,390.84
  6. Step 6: Final answer
    x = 34,947.02

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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.