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Finding the Fourth Proportional to 10,903.60, 16,362.60 and 6,223.60

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Solution

The fourth proportional to 10,903.60, 16,362.60 and 6,223.60 is: 9,339.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,903.60 : 16,362.60 = 6,223.60 : x
  2. Step 2: Convert to fraction form
    10,903.60/16,362.60 = 6,223.60/x
  3. Step 3: Cross multiply
    10,903.60x = 16,362.60 × 6,223.60
  4. Step 4: Simplify right side
    10,903.60x = 101,834,277.36
  5. Step 5: Solve for x
    x = 101,834,277.36/10,903.60
  6. Step 6: Final answer
    x = 9,339.51

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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.