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Finding the Fourth Proportional to 9,999.68, 14,984.92 and 5,625.68

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Solution

The fourth proportional to 9,999.68, 14,984.92 and 5,625.68 is: 8,430.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,999.68 : 14,984.92 = 5,625.68 : x
  2. Step 2: Convert to fraction form
    9,999.68/14,984.92 = 5,625.68/x
  3. Step 3: Cross multiply
    9,999.68x = 14,984.92 × 5,625.68
  4. Step 4: Simplify right side
    9,999.68x = 84,300,364.75
  5. Step 5: Solve for x
    x = 84,300,364.75/9,999.68
  6. Step 6: Final answer
    x = 8,430.31

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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.