Home / 19,017.32-28,528.80-6,540.56

Finding the Fourth Proportional to 19,017.32, 28,528.80 and 6,540.56

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Solution

The fourth proportional to 19,017.32, 28,528.80 and 6,540.56 is: 9,811.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,017.32 : 28,528.80 = 6,540.56 : x
  2. Step 2: Convert to fraction form
    19,017.32/28,528.80 = 6,540.56/x
  3. Step 3: Cross multiply
    19,017.32x = 28,528.80 × 6,540.56
  4. Step 4: Simplify right side
    19,017.32x = 186,594,328.13
  5. Step 5: Solve for x
    x = 186,594,328.13/19,017.32
  6. Step 6: Final answer
    x = 9,811.81

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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.