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Finding the Fourth Proportional to 14,473.88, 19,990.36 and 9,749.96

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Solution

The fourth proportional to 14,473.88, 19,990.36 and 9,749.96 is: 13,466.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,473.88 : 19,990.36 = 9,749.96 : x
  2. Step 2: Convert to fraction form
    14,473.88/19,990.36 = 9,749.96/x
  3. Step 3: Cross multiply
    14,473.88x = 19,990.36 × 9,749.96
  4. Step 4: Simplify right side
    14,473.88x = 194,905,210.39
  5. Step 5: Solve for x
    x = 194,905,210.39/14,473.88
  6. Step 6: Final answer
    x = 13,466.00

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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.