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Finding the Fourth Proportional to 25,603.83, 38,541.62 and 18,259.11

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Solution

The fourth proportional to 25,603.83, 38,541.62 and 18,259.11 is: 27,485.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,603.83 : 38,541.62 = 18,259.11 : x
  2. Step 2: Convert to fraction form
    25,603.83/38,541.62 = 18,259.11/x
  3. Step 3: Cross multiply
    25,603.83x = 38,541.62 × 18,259.11
  4. Step 4: Simplify right side
    25,603.83x = 703,735,724.81
  5. Step 5: Solve for x
    x = 703,735,724.81/25,603.83
  6. Step 6: Final answer
    x = 27,485.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.