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Finding the Fourth Proportional to 8,887.47, 13,328.13 and 4,944.72

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Solution

The fourth proportional to 8,887.47, 13,328.13 and 4,944.72 is: 7,415.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,887.47 : 13,328.13 = 4,944.72 : x
  2. Step 2: Convert to fraction form
    8,887.47/13,328.13 = 4,944.72/x
  3. Step 3: Cross multiply
    8,887.47x = 13,328.13 × 4,944.72
  4. Step 4: Simplify right side
    8,887.47x = 65,903,870.97
  5. Step 5: Solve for x
    x = 65,903,870.97/8,887.47
  6. Step 6: Final answer
    x = 7,415.37

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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.