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Finding the Fourth Proportional to 58,641.68, 87,959.64 and 19,217.36

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Solution

The fourth proportional to 58,641.68, 87,959.64 and 19,217.36 is: 28,825.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,641.68 : 87,959.64 = 19,217.36 : x
  2. Step 2: Convert to fraction form
    58,641.68/87,959.64 = 19,217.36/x
  3. Step 3: Cross multiply
    58,641.68x = 87,959.64 × 19,217.36
  4. Step 4: Simplify right side
    58,641.68x = 1,690,352,067.35
  5. Step 5: Solve for x
    x = 1,690,352,067.35/58,641.68
  6. Step 6: Final answer
    x = 28,825.10

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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.