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Finding the Fourth Proportional to 9,160.74, 12,641.82 and 4,968.99

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Solution

The fourth proportional to 9,160.74, 12,641.82 and 4,968.99 is: 6,857.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,160.74 : 12,641.82 = 4,968.99 : x
  2. Step 2: Convert to fraction form
    9,160.74/12,641.82 = 4,968.99/x
  3. Step 3: Cross multiply
    9,160.74x = 12,641.82 × 4,968.99
  4. Step 4: Simplify right side
    9,160.74x = 62,817,077.16
  5. Step 5: Solve for x
    x = 62,817,077.16/9,160.74
  6. Step 6: Final answer
    x = 6,857.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.