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Finding the Fourth Proportional to 39,291.44, 58,946.07 and 12,996.14

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Solution

The fourth proportional to 39,291.44, 58,946.07 and 12,996.14 is: 19,497.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,291.44 : 58,946.07 = 12,996.14 : x
  2. Step 2: Convert to fraction form
    39,291.44/58,946.07 = 12,996.14/x
  3. Step 3: Cross multiply
    39,291.44x = 58,946.07 × 12,996.14
  4. Step 4: Simplify right side
    39,291.44x = 766,071,378.17
  5. Step 5: Solve for x
    x = 766,071,378.17/39,291.44
  6. Step 6: Final answer
    x = 19,497.16

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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.