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Finding the Fourth Proportional to 8,888.10, 13,332.21 and 2,647.95

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Solution

The fourth proportional to 8,888.10, 13,332.21 and 2,647.95 is: 3,971.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,888.10 : 13,332.21 = 2,647.95 : x
  2. Step 2: Convert to fraction form
    8,888.10/13,332.21 = 2,647.95/x
  3. Step 3: Cross multiply
    8,888.10x = 13,332.21 × 2,647.95
  4. Step 4: Simplify right side
    8,888.10x = 35,303,025.47
  5. Step 5: Solve for x
    x = 35,303,025.47/8,888.10
  6. Step 6: Final answer
    x = 3,971.94

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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.