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Finding the Fourth Proportional to 14,888.72, 20,548.08 and 9,516.12

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Solution

The fourth proportional to 14,888.72, 20,548.08 and 9,516.12 is: 13,133.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,888.72 : 20,548.08 = 9,516.12 : x
  2. Step 2: Convert to fraction form
    14,888.72/20,548.08 = 9,516.12/x
  3. Step 3: Cross multiply
    14,888.72x = 20,548.08 × 9,516.12
  4. Step 4: Simplify right side
    14,888.72x = 195,537,995.05
  5. Step 5: Solve for x
    x = 195,537,995.05/14,888.72
  6. Step 6: Final answer
    x = 13,133.30

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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.