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Finding the Fourth Proportional to 9,888.48, 14,812.20 and 9,548.28

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Solution

The fourth proportional to 9,888.48, 14,812.20 and 9,548.28 is: 14,302.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,888.48 : 14,812.20 = 9,548.28 : x
  2. Step 2: Convert to fraction form
    9,888.48/14,812.20 = 9,548.28/x
  3. Step 3: Cross multiply
    9,888.48x = 14,812.20 × 9,548.28
  4. Step 4: Simplify right side
    9,888.48x = 141,431,033.02
  5. Step 5: Solve for x
    x = 141,431,033.02/9,888.48
  6. Step 6: Final answer
    x = 14,302.61

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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.