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Finding the Fourth Proportional to 8,977.67, 13,466.48 and 7,410.90

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Solution

The fourth proportional to 8,977.67, 13,466.48 and 7,410.90 is: 11,116.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,977.67 : 13,466.48 = 7,410.90 : x
  2. Step 2: Convert to fraction form
    8,977.67/13,466.48 = 7,410.90/x
  3. Step 3: Cross multiply
    8,977.67x = 13,466.48 × 7,410.90
  4. Step 4: Simplify right side
    8,977.67x = 99,798,699.58
  5. Step 5: Solve for x
    x = 99,798,699.58/8,977.67
  6. Step 6: Final answer
    x = 11,116.33

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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.