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Finding the Fourth Proportional to 9,879.63, 14,749.01 and 9,533.55

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Solution

The fourth proportional to 9,879.63, 14,749.01 and 9,533.55 is: 14,232.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,879.63 : 14,749.01 = 9,533.55 : x
  2. Step 2: Convert to fraction form
    9,879.63/14,749.01 = 9,533.55/x
  3. Step 3: Cross multiply
    9,879.63x = 14,749.01 × 9,533.55
  4. Step 4: Simplify right side
    9,879.63x = 140,610,521.30
  5. Step 5: Solve for x
    x = 140,610,521.30/9,879.63
  6. Step 6: Final answer
    x = 14,232.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.