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Finding the Fourth Proportional to 11,457.54, 15,773.63 and 9,964.67

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Solution

The fourth proportional to 11,457.54, 15,773.63 and 9,964.67 is: 13,718.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,457.54 : 15,773.63 = 9,964.67 : x
  2. Step 2: Convert to fraction form
    11,457.54/15,773.63 = 9,964.67/x
  3. Step 3: Cross multiply
    11,457.54x = 15,773.63 × 9,964.67
  4. Step 4: Simplify right side
    11,457.54x = 157,178,888.96
  5. Step 5: Solve for x
    x = 157,178,888.96/11,457.54
  6. Step 6: Final answer
    x = 13,718.38

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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.