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Finding the Fourth Proportional to 15,641.91, 23,465.93 and 6,876.80

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Solution

The fourth proportional to 15,641.91, 23,465.93 and 6,876.80 is: 10,316.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,641.91 : 23,465.93 = 6,876.80 : x
  2. Step 2: Convert to fraction form
    15,641.91/23,465.93 = 6,876.80/x
  3. Step 3: Cross multiply
    15,641.91x = 23,465.93 × 6,876.80
  4. Step 4: Simplify right side
    15,641.91x = 161,370,355.71
  5. Step 5: Solve for x
    x = 161,370,355.71/15,641.91
  6. Step 6: Final answer
    x = 10,316.54

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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.