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Finding the Fourth Proportional to 43,830.76, 65,749.02 and 15,756.52

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Solution

The fourth proportional to 43,830.76, 65,749.02 and 15,756.52 is: 23,635.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,830.76 : 65,749.02 = 15,756.52 : x
  2. Step 2: Convert to fraction form
    43,830.76/65,749.02 = 15,756.52/x
  3. Step 3: Cross multiply
    43,830.76x = 65,749.02 × 15,756.52
  4. Step 4: Simplify right side
    43,830.76x = 1,035,975,748.61
  5. Step 5: Solve for x
    x = 1,035,975,748.61/43,830.76
  6. Step 6: Final answer
    x = 23,635.82

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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.