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Finding the Fourth Proportional to 14,751.72, 22,130.82 and 4,890.51

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Solution

The fourth proportional to 14,751.72, 22,130.82 and 4,890.51 is: 7,336.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,751.72 : 22,130.82 = 4,890.51 : x
  2. Step 2: Convert to fraction form
    14,751.72/22,130.82 = 4,890.51/x
  3. Step 3: Cross multiply
    14,751.72x = 22,130.82 × 4,890.51
  4. Step 4: Simplify right side
    14,751.72x = 108,230,996.52
  5. Step 5: Solve for x
    x = 108,230,996.52/14,751.72
  6. Step 6: Final answer
    x = 7,336.84

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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.