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Finding the Fourth Proportional to 11,798.40, 16,281.04 and 6,762.56

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Solution

The fourth proportional to 11,798.40, 16,281.04 and 6,762.56 is: 9,331.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,798.40 : 16,281.04 = 6,762.56 : x
  2. Step 2: Convert to fraction form
    11,798.40/16,281.04 = 6,762.56/x
  3. Step 3: Cross multiply
    11,798.40x = 16,281.04 × 6,762.56
  4. Step 4: Simplify right side
    11,798.40x = 110,101,509.86
  5. Step 5: Solve for x
    x = 110,101,509.86/11,798.40
  6. Step 6: Final answer
    x = 9,331.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.