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Finding the Fourth Proportional to 9,912.48, 14,815.36 and 8,653.06

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Solution

The fourth proportional to 9,912.48, 14,815.36 and 8,653.06 is: 12,933.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,912.48 : 14,815.36 = 8,653.06 : x
  2. Step 2: Convert to fraction form
    9,912.48/14,815.36 = 8,653.06/x
  3. Step 3: Cross multiply
    9,912.48x = 14,815.36 × 8,653.06
  4. Step 4: Simplify right side
    9,912.48x = 128,198,199.00
  5. Step 5: Solve for x
    x = 128,198,199.00/9,912.48
  6. Step 6: Final answer
    x = 12,933.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.