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Finding the Fourth Proportional to 29,298.04, 43,947.03 and 7,111.21

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Solution

The fourth proportional to 29,298.04, 43,947.03 and 7,111.21 is: 10,666.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,298.04 : 43,947.03 = 7,111.21 : x
  2. Step 2: Convert to fraction form
    29,298.04/43,947.03 = 7,111.21/x
  3. Step 3: Cross multiply
    29,298.04x = 43,947.03 × 7,111.21
  4. Step 4: Simplify right side
    29,298.04x = 312,516,559.21
  5. Step 5: Solve for x
    x = 312,516,559.21/29,298.04
  6. Step 6: Final answer
    x = 10,666.81

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Similar ratio
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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.