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Finding the Fourth Proportional to 8,852.85, 13,263.89 and 7,389.99

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Solution

The fourth proportional to 8,852.85, 13,263.89 and 7,389.99 is: 11,072.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,852.85 : 13,263.89 = 7,389.99 : x
  2. Step 2: Convert to fraction form
    8,852.85/13,263.89 = 7,389.99/x
  3. Step 3: Cross multiply
    8,852.85x = 13,263.89 × 7,389.99
  4. Step 4: Simplify right side
    8,852.85x = 98,019,977.51
  5. Step 5: Solve for x
    x = 98,019,977.51/8,852.85
  6. Step 6: Final answer
    x = 11,072.14

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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.