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Finding the Fourth Proportional to 38,994.71, 58,492.97 and 12,701.49

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Solution

The fourth proportional to 38,994.71, 58,492.97 and 12,701.49 is: 19,052.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,994.71 : 58,492.97 = 12,701.49 : x
  2. Step 2: Convert to fraction form
    38,994.71/58,492.97 = 12,701.49/x
  3. Step 3: Cross multiply
    38,994.71x = 58,492.97 × 12,701.49
  4. Step 4: Simplify right side
    38,994.71x = 742,947,810.02
  5. Step 5: Solve for x
    x = 742,947,810.02/38,994.71
  6. Step 6: Final answer
    x = 19,052.53

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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.