Home / 19,616.58-29,415.66-7,127.80

Finding the Fourth Proportional to 19,616.58, 29,415.66 and 7,127.80

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Solution

The fourth proportional to 19,616.58, 29,415.66 and 7,127.80 is: 10,688.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,616.58 : 29,415.66 = 7,127.80 : x
  2. Step 2: Convert to fraction form
    19,616.58/29,415.66 = 7,127.80/x
  3. Step 3: Cross multiply
    19,616.58x = 29,415.66 × 7,127.80
  4. Step 4: Simplify right side
    19,616.58x = 209,668,841.08
  5. Step 5: Solve for x
    x = 209,668,841.08/19,616.58
  6. Step 6: Final answer
    x = 10,688.35

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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.