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Finding the Fourth Proportional to 18,333.63, 25,311.15 and 13,293

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Solution

The fourth proportional to 18,333.63, 25,311.15 and 13,293 is: 18,352.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,333.63 : 25,311.15 = 13,293 : x
  2. Step 2: Convert to fraction form
    18,333.63/25,311.15 = 13,293/x
  3. Step 3: Cross multiply
    18,333.63x = 25,311.15 × 13,293
  4. Step 4: Simplify right side
    18,333.63x = 336,461,116.95
  5. Step 5: Solve for x
    x = 336,461,116.95/18,333.63
  6. Step 6: Final answer
    x = 18,352.13

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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.