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Finding the Fourth Proportional to 15,048.40, 20,765.08 and 8,332.33

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Solution

The fourth proportional to 15,048.40, 20,765.08 and 8,332.33 is: 11,497.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,048.40 : 20,765.08 = 8,332.33 : x
  2. Step 2: Convert to fraction form
    15,048.40/20,765.08 = 8,332.33/x
  3. Step 3: Cross multiply
    15,048.40x = 20,765.08 × 8,332.33
  4. Step 4: Simplify right side
    15,048.40x = 173,021,457.37
  5. Step 5: Solve for x
    x = 173,021,457.37/15,048.40
  6. Step 6: Final answer
    x = 11,497.67

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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.