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Finding the Fourth Proportional to 19,219, 26,508.46 and 12,492.08

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Solution

The fourth proportional to 19,219, 26,508.46 and 12,492.08 is: 17,230.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,219 : 26,508.46 = 12,492.08 : x
  2. Step 2: Convert to fraction form
    19,219/26,508.46 = 12,492.08/x
  3. Step 3: Cross multiply
    19,219x = 26,508.46 × 12,492.08
  4. Step 4: Simplify right side
    19,219x = 331,145,803.00
  5. Step 5: Solve for x
    x = 331,145,803.00/19,219
  6. Step 6: Final answer
    x = 17,230.13

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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.