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Finding the Fourth Proportional to 13,364.16, 18,442.98 and 7,395.48

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Solution

The fourth proportional to 13,364.16, 18,442.98 and 7,395.48 is: 10,206.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,364.16 : 18,442.98 = 7,395.48 : x
  2. Step 2: Convert to fraction form
    13,364.16/18,442.98 = 7,395.48/x
  3. Step 3: Cross multiply
    13,364.16x = 18,442.98 × 7,395.48
  4. Step 4: Simplify right side
    13,364.16x = 136,394,689.73
  5. Step 5: Solve for x
    x = 136,394,689.73/13,364.16
  6. Step 6: Final answer
    x = 10,206.01

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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.