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Finding the Fourth Proportional to 13,701.58, 18,911.33 and 8,038.14

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Solution

The fourth proportional to 13,701.58, 18,911.33 and 8,038.14 is: 11,094.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,701.58 : 18,911.33 = 8,038.14 : x
  2. Step 2: Convert to fraction form
    13,701.58/18,911.33 = 8,038.14/x
  3. Step 3: Cross multiply
    13,701.58x = 18,911.33 × 8,038.14
  4. Step 4: Simplify right side
    13,701.58x = 152,012,015.35
  5. Step 5: Solve for x
    x = 152,012,015.35/13,701.58
  6. Step 6: Final answer
    x = 11,094.49

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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.