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Finding the Fourth Proportional to 22,980.91, 34,478.79 and 11,285.93

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Solution

The fourth proportional to 22,980.91, 34,478.79 and 11,285.93 is: 16,932.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,980.91 : 34,478.79 = 11,285.93 : x
  2. Step 2: Convert to fraction form
    22,980.91/34,478.79 = 11,285.93/x
  3. Step 3: Cross multiply
    22,980.91x = 34,478.79 × 11,285.93
  4. Step 4: Simplify right side
    22,980.91x = 389,125,038.03
  5. Step 5: Solve for x
    x = 389,125,038.03/22,980.91
  6. Step 6: Final answer
    x = 16,932.53

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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.