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Finding the Fourth Proportional to 9,995.56, 14,990.72 and 2,973.68

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Solution

The fourth proportional to 9,995.56, 14,990.72 and 2,973.68 is: 4,459.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,995.56 : 14,990.72 = 2,973.68 : x
  2. Step 2: Convert to fraction form
    9,995.56/14,990.72 = 2,973.68/x
  3. Step 3: Cross multiply
    9,995.56x = 14,990.72 × 2,973.68
  4. Step 4: Simplify right side
    9,995.56x = 44,577,604.25
  5. Step 5: Solve for x
    x = 44,577,604.25/9,995.56
  6. Step 6: Final answer
    x = 4,459.74

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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.