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Finding the Fourth Proportional to 9,999.86, 14,991.28 and 6,107.00

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Solution

The fourth proportional to 9,999.86, 14,991.28 and 6,107.00 is: 9,155.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,999.86 : 14,991.28 = 6,107.00 : x
  2. Step 2: Convert to fraction form
    9,999.86/14,991.28 = 6,107.00/x
  3. Step 3: Cross multiply
    9,999.86x = 14,991.28 × 6,107.00
  4. Step 4: Simplify right side
    9,999.86x = 91,551,656.74
  5. Step 5: Solve for x
    x = 91,551,656.74/9,999.86
  6. Step 6: Final answer
    x = 9,155.30

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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.