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Finding the Fourth Proportional to 11,376.99, 17,064.90 and 4,356.48

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Solution

The fourth proportional to 11,376.99, 17,064.90 and 4,356.48 is: 6,534.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,376.99 : 17,064.90 = 4,356.48 : x
  2. Step 2: Convert to fraction form
    11,376.99/17,064.90 = 4,356.48/x
  3. Step 3: Cross multiply
    11,376.99x = 17,064.90 × 4,356.48
  4. Step 4: Simplify right side
    11,376.99x = 74,342,895.55
  5. Step 5: Solve for x
    x = 74,342,895.55/11,376.99
  6. Step 6: Final answer
    x = 6,534.50

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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.