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Finding the Fourth Proportional to 66,047.37, 99,086.16 and 28,613.67

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Solution

The fourth proportional to 66,047.37, 99,086.16 and 28,613.67 is: 42,927.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,047.37 : 99,086.16 = 28,613.67 : x
  2. Step 2: Convert to fraction form
    66,047.37/99,086.16 = 28,613.67/x
  3. Step 3: Cross multiply
    66,047.37x = 99,086.16 × 28,613.67
  4. Step 4: Simplify right side
    66,047.37x = 2,835,218,683.81
  5. Step 5: Solve for x
    x = 2,835,218,683.81/66,047.37
  6. Step 6: Final answer
    x = 42,927.05

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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.