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Finding the Fourth Proportional to 10,632.36, 16,028.16 and 9,918.74

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Solution

The fourth proportional to 10,632.36, 16,028.16 and 9,918.74 is: 14,952.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,632.36 : 16,028.16 = 9,918.74 : x
  2. Step 2: Convert to fraction form
    10,632.36/16,028.16 = 9,918.74/x
  3. Step 3: Cross multiply
    10,632.36x = 16,028.16 × 9,918.74
  4. Step 4: Simplify right side
    10,632.36x = 158,979,151.72
  5. Step 5: Solve for x
    x = 158,979,151.72/10,632.36
  6. Step 6: Final answer
    x = 14,952.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.