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Finding the Fourth Proportional to 9,617.99, 13,272.86 and 5,368.98

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Solution

The fourth proportional to 9,617.99, 13,272.86 and 5,368.98 is: 7,409.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,617.99 : 13,272.86 = 5,368.98 : x
  2. Step 2: Convert to fraction form
    9,617.99/13,272.86 = 5,368.98/x
  3. Step 3: Cross multiply
    9,617.99x = 13,272.86 × 5,368.98
  4. Step 4: Simplify right side
    9,617.99x = 71,261,666.94
  5. Step 5: Solve for x
    x = 71,261,666.94/9,617.99
  6. Step 6: Final answer
    x = 7,409.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.