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Finding the Fourth Proportional to 18,461.12, 25,470 and 10,393.52

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Solution

The fourth proportional to 18,461.12, 25,470 and 10,393.52 is: 14,339.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,461.12 : 25,470 = 10,393.52 : x
  2. Step 2: Convert to fraction form
    18,461.12/25,470 = 10,393.52/x
  3. Step 3: Cross multiply
    18,461.12x = 25,470 × 10,393.52
  4. Step 4: Simplify right side
    18,461.12x = 264,722,827.05
  5. Step 5: Solve for x
    x = 264,722,827.05/18,461.12
  6. Step 6: Final answer
    x = 14,339.48

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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.