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Finding the Fourth Proportional to 18,133.65, 25,032.19 and 16,998.76

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Solution

The fourth proportional to 18,133.65, 25,032.19 and 16,998.76 is: 23,465.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,133.65 : 25,032.19 = 16,998.76 : x
  2. Step 2: Convert to fraction form
    18,133.65/25,032.19 = 16,998.76/x
  3. Step 3: Cross multiply
    18,133.65x = 25,032.19 × 16,998.76
  4. Step 4: Simplify right side
    18,133.65x = 425,516,210.75
  5. Step 5: Solve for x
    x = 425,516,210.75/18,133.65
  6. Step 6: Final answer
    x = 23,465.56

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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.