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Finding the Fourth Proportional to 51,179.48, 70,615.32 and 28,823.48

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Solution

The fourth proportional to 51,179.48, 70,615.32 and 28,823.48 is: 39,769.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,179.48 : 70,615.32 = 28,823.48 : x
  2. Step 2: Convert to fraction form
    51,179.48/70,615.32 = 28,823.48/x
  3. Step 3: Cross multiply
    51,179.48x = 70,615.32 × 28,823.48
  4. Step 4: Simplify right side
    51,179.48x = 2,035,379,263.71
  5. Step 5: Solve for x
    x = 2,035,379,263.71/51,179.48
  6. Step 6: Final answer
    x = 39,769.44

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1.5x scale

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.