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Finding the Fourth Proportional to 34,907.50, 52,360.47 and 8,612.47

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Solution

The fourth proportional to 34,907.50, 52,360.47 and 8,612.47 is: 12,918.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,907.50 : 52,360.47 = 8,612.47 : x
  2. Step 2: Convert to fraction form
    34,907.50/52,360.47 = 8,612.47/x
  3. Step 3: Cross multiply
    34,907.50x = 52,360.47 × 8,612.47
  4. Step 4: Simplify right side
    34,907.50x = 450,952,977.06
  5. Step 5: Solve for x
    x = 450,952,977.06/34,907.50
  6. Step 6: Final answer
    x = 12,918.51

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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.