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Finding the Fourth Proportional to 48,805.54, 73,142.64 and 19,215.42

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Solution

The fourth proportional to 48,805.54, 73,142.64 and 19,215.42 is: 28,797.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,805.54 : 73,142.64 = 19,215.42 : x
  2. Step 2: Convert to fraction form
    48,805.54/73,142.64 = 19,215.42/x
  3. Step 3: Cross multiply
    48,805.54x = 73,142.64 × 19,215.42
  4. Step 4: Simplify right side
    48,805.54x = 1,405,466,547.51
  5. Step 5: Solve for x
    x = 1,405,466,547.51/48,805.54
  6. Step 6: Final answer
    x = 28,797.27

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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.