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Finding the Fourth Proportional to 19,059.90, 28,592.61 and 5,913.33

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Solution

The fourth proportional to 19,059.90, 28,592.61 and 5,913.33 is: 8,870.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,059.90 : 28,592.61 = 5,913.33 : x
  2. Step 2: Convert to fraction form
    19,059.90/28,592.61 = 5,913.33/x
  3. Step 3: Cross multiply
    19,059.90x = 28,592.61 × 5,913.33
  4. Step 4: Simplify right side
    19,059.90x = 169,077,538.49
  5. Step 5: Solve for x
    x = 169,077,538.49/19,059.90
  6. Step 6: Final answer
    x = 8,870.85

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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.