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Finding the Fourth Proportional to 19,285.79, 26,566.79 and 16,443.90

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Solution

The fourth proportional to 19,285.79, 26,566.79 and 16,443.90 is: 22,652.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,285.79 : 26,566.79 = 16,443.90 : x
  2. Step 2: Convert to fraction form
    19,285.79/26,566.79 = 16,443.90/x
  3. Step 3: Cross multiply
    19,285.79x = 26,566.79 × 16,443.90
  4. Step 4: Simplify right side
    19,285.79x = 436,861,555.86
  5. Step 5: Solve for x
    x = 436,861,555.86/19,285.79
  6. Step 6: Final answer
    x = 22,652.00

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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.