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Finding the Fourth Proportional to 38,994.49, 58,491.74 and 9,412.30

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Solution

The fourth proportional to 38,994.49, 58,491.74 and 9,412.30 is: 14,118.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,994.49 : 58,491.74 = 9,412.30 : x
  2. Step 2: Convert to fraction form
    38,994.49/58,491.74 = 9,412.30/x
  3. Step 3: Cross multiply
    38,994.49x = 58,491.74 × 9,412.30
  4. Step 4: Simplify right side
    38,994.49x = 550,541,804.40
  5. Step 5: Solve for x
    x = 550,541,804.40/38,994.49
  6. Step 6: Final answer
    x = 14,118.45

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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.