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Finding the Fourth Proportional to 19,483.50, 26,887.23 and 12,031.50

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Solution

The fourth proportional to 19,483.50, 26,887.23 and 12,031.50 is: 16,603.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,483.50 : 26,887.23 = 12,031.50 : x
  2. Step 2: Convert to fraction form
    19,483.50/26,887.23 = 12,031.50/x
  3. Step 3: Cross multiply
    19,483.50x = 26,887.23 × 12,031.50
  4. Step 4: Simplify right side
    19,483.50x = 323,493,707.75
  5. Step 5: Solve for x
    x = 323,493,707.75/19,483.50
  6. Step 6: Final answer
    x = 16,603.47

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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.