Home / 19,013.81-28,512.54-6,535.05

Finding the Fourth Proportional to 19,013.81, 28,512.54 and 6,535.05

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Solution

The fourth proportional to 19,013.81, 28,512.54 and 6,535.05 is: 9,799.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,013.81 : 28,512.54 = 6,535.05 : x
  2. Step 2: Convert to fraction form
    19,013.81/28,512.54 = 6,535.05/x
  3. Step 3: Cross multiply
    19,013.81x = 28,512.54 × 6,535.05
  4. Step 4: Simplify right side
    19,013.81x = 186,330,767.60
  5. Step 5: Solve for x
    x = 186,330,767.60/19,013.81
  6. Step 6: Final answer
    x = 9,799.76

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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.