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Finding the Fourth Proportional to 61,195.68, 91,802.10 and 19,078.92

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Solution

The fourth proportional to 61,195.68, 91,802.10 and 19,078.92 is: 28,621.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,195.68 : 91,802.10 = 19,078.92 : x
  2. Step 2: Convert to fraction form
    61,195.68/91,802.10 = 19,078.92/x
  3. Step 3: Cross multiply
    61,195.68x = 91,802.10 × 19,078.92
  4. Step 4: Simplify right side
    61,195.68x = 1,751,484,921.73
  5. Step 5: Solve for x
    x = 1,751,484,921.73/61,195.68
  6. Step 6: Final answer
    x = 28,621.05

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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.