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Finding the Fourth Proportional to 56,998.72, 85,498.72 and 17,555.52

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Solution

The fourth proportional to 56,998.72, 85,498.72 and 17,555.52 is: 26,333.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,998.72 : 85,498.72 = 17,555.52 : x
  2. Step 2: Convert to fraction form
    56,998.72/85,498.72 = 17,555.52/x
  3. Step 3: Cross multiply
    56,998.72x = 85,498.72 × 17,555.52
  4. Step 4: Simplify right side
    56,998.72x = 1,500,974,488.93
  5. Step 5: Solve for x
    x = 1,500,974,488.93/56,998.72
  6. Step 6: Final answer
    x = 26,333.48

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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.