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Finding the Fourth Proportional to 9,900.79, 14,851.19 and 3,327.00

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Solution

The fourth proportional to 9,900.79, 14,851.19 and 3,327.00 is: 4,990.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,900.79 : 14,851.19 = 3,327.00 : x
  2. Step 2: Convert to fraction form
    9,900.79/14,851.19 = 3,327.00/x
  3. Step 3: Cross multiply
    9,900.79x = 14,851.19 × 3,327.00
  4. Step 4: Simplify right side
    9,900.79x = 49,409,818.24
  5. Step 5: Solve for x
    x = 49,409,818.24/9,900.79
  6. Step 6: Final answer
    x = 4,990.49

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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.