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Finding the Fourth Proportional to 34,148.70, 51,223.05 and 28,316.70

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Solution

The fourth proportional to 34,148.70, 51,223.05 and 28,316.70 is: 42,475.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,148.70 : 51,223.05 = 28,316.70 : x
  2. Step 2: Convert to fraction form
    34,148.70/51,223.05 = 28,316.70/x
  3. Step 3: Cross multiply
    34,148.70x = 51,223.05 × 28,316.70
  4. Step 4: Simplify right side
    34,148.70x = 1,450,467,739.94
  5. Step 5: Solve for x
    x = 1,450,467,739.94/34,148.70
  6. Step 6: Final answer
    x = 42,475.05

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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.