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Finding the Fourth Proportional to 8,790.88, 13,191.18 and 4,897.48

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Solution

The fourth proportional to 8,790.88, 13,191.18 and 4,897.48 is: 7,348.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,790.88 : 13,191.18 = 4,897.48 : x
  2. Step 2: Convert to fraction form
    8,790.88/13,191.18 = 4,897.48/x
  3. Step 3: Cross multiply
    8,790.88x = 13,191.18 × 4,897.48
  4. Step 4: Simplify right side
    8,790.88x = 64,603,540.23
  5. Step 5: Solve for x
    x = 64,603,540.23/8,790.88
  6. Step 6: Final answer
    x = 7,348.93

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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.