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Finding the Fourth Proportional to 10,805.53, 14,911.43 and 6,089.82

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Solution

The fourth proportional to 10,805.53, 14,911.43 and 6,089.82 is: 8,403.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,805.53 : 14,911.43 = 6,089.82 : x
  2. Step 2: Convert to fraction form
    10,805.53/14,911.43 = 6,089.82/x
  3. Step 3: Cross multiply
    10,805.53x = 14,911.43 × 6,089.82
  4. Step 4: Simplify right side
    10,805.53x = 90,807,924.64
  5. Step 5: Solve for x
    x = 90,807,924.64/10,805.53
  6. Step 6: Final answer
    x = 8,403.84

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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.