Home / 18,966.59-28,305.67-16,864.76

Finding the Fourth Proportional to 18,966.59, 28,305.67 and 16,864.76

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Solution

The fourth proportional to 18,966.59, 28,305.67 and 16,864.76 is: 25,168.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,966.59 : 28,305.67 = 16,864.76 : x
  2. Step 2: Convert to fraction form
    18,966.59/28,305.67 = 16,864.76/x
  3. Step 3: Cross multiply
    18,966.59x = 28,305.67 × 16,864.76
  4. Step 4: Simplify right side
    18,966.59x = 477,368,331.19
  5. Step 5: Solve for x
    x = 477,368,331.19/18,966.59
  6. Step 6: Final answer
    x = 25,168.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.