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Finding the Fourth Proportional to 34,645.84, 51,955.86 and 12,453.16

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Solution

The fourth proportional to 34,645.84, 51,955.86 and 12,453.16 is: 18,675.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,645.84 : 51,955.86 = 12,453.16 : x
  2. Step 2: Convert to fraction form
    34,645.84/51,955.86 = 12,453.16/x
  3. Step 3: Cross multiply
    34,645.84x = 51,955.86 × 12,453.16
  4. Step 4: Simplify right side
    34,645.84x = 647,014,637.52
  5. Step 5: Solve for x
    x = 647,014,637.52/34,645.84
  6. Step 6: Final answer
    x = 18,675.10

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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.