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Finding the Fourth Proportional to 48,389.31, 72,584.37 and 13,330.89

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Solution

The fourth proportional to 48,389.31, 72,584.37 and 13,330.89 is: 19,996.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,389.31 : 72,584.37 = 13,330.89 : x
  2. Step 2: Convert to fraction form
    48,389.31/72,584.37 = 13,330.89/x
  3. Step 3: Cross multiply
    48,389.31x = 72,584.37 × 13,330.89
  4. Step 4: Simplify right side
    48,389.31x = 967,614,252.19
  5. Step 5: Solve for x
    x = 967,614,252.19/48,389.31
  6. Step 6: Final answer
    x = 19,996.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.