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Finding the Fourth Proportional to 9,955.72, 14,940.06 and 4,412.68

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Solution

The fourth proportional to 9,955.72, 14,940.06 and 4,412.68 is: 6,621.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,955.72 : 14,940.06 = 4,412.68 : x
  2. Step 2: Convert to fraction form
    9,955.72/14,940.06 = 4,412.68/x
  3. Step 3: Cross multiply
    9,955.72x = 14,940.06 × 4,412.68
  4. Step 4: Simplify right side
    9,955.72x = 65,925,703.96
  5. Step 5: Solve for x
    x = 65,925,703.96/9,955.72
  6. Step 6: Final answer
    x = 6,621.89

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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.