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Finding the Fourth Proportional to 8,507.98, 12,761.94 and 4,636.99

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Solution

The fourth proportional to 8,507.98, 12,761.94 and 4,636.99 is: 6,955.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,507.98 : 12,761.94 = 4,636.99 : x
  2. Step 2: Convert to fraction form
    8,507.98/12,761.94 = 4,636.99/x
  3. Step 3: Cross multiply
    8,507.98x = 12,761.94 × 4,636.99
  4. Step 4: Simplify right side
    8,507.98x = 59,176,988.16
  5. Step 5: Solve for x
    x = 59,176,988.16/8,507.98
  6. Step 6: Final answer
    x = 6,955.47

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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.