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Finding the Fourth Proportional to 18,410.80, 25,407.54 and 10,452.76

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Solution

The fourth proportional to 18,410.80, 25,407.54 and 10,452.76 is: 14,425.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,410.80 : 25,407.54 = 10,452.76 : x
  2. Step 2: Convert to fraction form
    18,410.80/25,407.54 = 10,452.76/x
  3. Step 3: Cross multiply
    18,410.80x = 25,407.54 × 10,452.76
  4. Step 4: Simplify right side
    18,410.80x = 265,578,917.81
  5. Step 5: Solve for x
    x = 265,578,917.81/18,410.80
  6. Step 6: Final answer
    x = 14,425.17

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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.