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Finding the Fourth Proportional to 19,482.84, 26,887.86 and 11,099.16

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Solution

The fourth proportional to 19,482.84, 26,887.86 and 11,099.16 is: 15,317.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,482.84 : 26,887.86 = 11,099.16 : x
  2. Step 2: Convert to fraction form
    19,482.84/26,887.86 = 11,099.16/x
  3. Step 3: Cross multiply
    19,482.84x = 26,887.86 × 11,099.16
  4. Step 4: Simplify right side
    19,482.84x = 298,432,660.20
  5. Step 5: Solve for x
    x = 298,432,660.20/19,482.84
  6. Step 6: Final answer
    x = 15,317.72

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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.