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Finding the Fourth Proportional to 51,106.50, 70,527.02 and 28,750.50

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Solution

The fourth proportional to 51,106.50, 70,527.02 and 28,750.50 is: 39,675.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,106.50 : 70,527.02 = 28,750.50 : x
  2. Step 2: Convert to fraction form
    51,106.50/70,527.02 = 28,750.50/x
  3. Step 3: Cross multiply
    51,106.50x = 70,527.02 × 28,750.50
  4. Step 4: Simplify right side
    51,106.50x = 2,027,686,944.76
  5. Step 5: Solve for x
    x = 2,027,686,944.76/51,106.50
  6. Step 6: Final answer
    x = 39,675.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.