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Finding the Fourth Proportional to 30,610.50, 45,913.59 and 15,022.50

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Solution

The fourth proportional to 30,610.50, 45,913.59 and 15,022.50 is: 22,532.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,610.50 : 45,913.59 = 15,022.50 : x
  2. Step 2: Convert to fraction form
    30,610.50/45,913.59 = 15,022.50/x
  3. Step 3: Cross multiply
    30,610.50x = 45,913.59 × 15,022.50
  4. Step 4: Simplify right side
    30,610.50x = 689,736,905.78
  5. Step 5: Solve for x
    x = 689,736,905.78/30,610.50
  6. Step 6: Final answer
    x = 22,532.69

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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.