Home / 19,100.10-28,643.28-6,616.77

Finding the Fourth Proportional to 19,100.10, 28,643.28 and 6,616.77

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Solution

The fourth proportional to 19,100.10, 28,643.28 and 6,616.77 is: 9,922.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,100.10 : 28,643.28 = 6,616.77 : x
  2. Step 2: Convert to fraction form
    19,100.10/28,643.28 = 6,616.77/x
  3. Step 3: Cross multiply
    19,100.10x = 28,643.28 × 6,616.77
  4. Step 4: Simplify right side
    19,100.10x = 189,525,995.81
  5. Step 5: Solve for x
    x = 189,525,995.81/19,100.10
  6. Step 6: Final answer
    x = 9,922.78

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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.