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Finding the Fourth Proportional to 11,210.52, 15,460.02 and 8,858.28

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Solution

The fourth proportional to 11,210.52, 15,460.02 and 8,858.28 is: 12,216.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,210.52 : 15,460.02 = 8,858.28 : x
  2. Step 2: Convert to fraction form
    11,210.52/15,460.02 = 8,858.28/x
  3. Step 3: Cross multiply
    11,210.52x = 15,460.02 × 8,858.28
  4. Step 4: Simplify right side
    11,210.52x = 136,949,185.97
  5. Step 5: Solve for x
    x = 136,949,185.97/11,210.52
  6. Step 6: Final answer
    x = 12,216.13

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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.