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Finding the Fourth Proportional to 64,211.54, 96,186.74 and 52,407.38

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Solution

The fourth proportional to 64,211.54, 96,186.74 and 52,407.38 is: 78,504.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,211.54 : 96,186.74 = 52,407.38 : x
  2. Step 2: Convert to fraction form
    64,211.54/96,186.74 = 52,407.38/x
  3. Step 3: Cross multiply
    64,211.54x = 96,186.74 × 52,407.38
  4. Step 4: Simplify right side
    64,211.54x = 5,040,894,684.23
  5. Step 5: Solve for x
    x = 5,040,894,684.23/64,211.54
  6. Step 6: Final answer
    x = 78,504.50

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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.