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Finding the Fourth Proportional to 7,925.79, 11,888.81 and 3,766.23

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Solution

The fourth proportional to 7,925.79, 11,888.81 and 3,766.23 is: 5,649.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,925.79 : 11,888.81 = 3,766.23 : x
  2. Step 2: Convert to fraction form
    7,925.79/11,888.81 = 3,766.23/x
  3. Step 3: Cross multiply
    7,925.79x = 11,888.81 × 3,766.23
  4. Step 4: Simplify right side
    7,925.79x = 44,775,988.18
  5. Step 5: Solve for x
    x = 44,775,988.18/7,925.79
  6. Step 6: Final answer
    x = 5,649.40

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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.