Home / 19,018.58-28,525.71-5,168.66

Finding the Fourth Proportional to 19,018.58, 28,525.71 and 5,168.66

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Solution

The fourth proportional to 19,018.58, 28,525.71 and 5,168.66 is: 7,752.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,018.58 : 28,525.71 = 5,168.66 : x
  2. Step 2: Convert to fraction form
    19,018.58/28,525.71 = 5,168.66/x
  3. Step 3: Cross multiply
    19,018.58x = 28,525.71 × 5,168.66
  4. Step 4: Simplify right side
    19,018.58x = 147,439,696.25
  5. Step 5: Solve for x
    x = 147,439,696.25/19,018.58
  6. Step 6: Final answer
    x = 7,752.40

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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.