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Finding the Fourth Proportional to 51,344.24, 70,856.04 and 28,988.24

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Solution

The fourth proportional to 51,344.24, 70,856.04 and 28,988.24 is: 40,004.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,344.24 : 70,856.04 = 28,988.24 : x
  2. Step 2: Convert to fraction form
    51,344.24/70,856.04 = 28,988.24/x
  3. Step 3: Cross multiply
    51,344.24x = 70,856.04 × 28,988.24
  4. Step 4: Simplify right side
    51,344.24x = 2,053,991,892.97
  5. Step 5: Solve for x
    x = 2,053,991,892.97/51,344.24
  6. Step 6: Final answer
    x = 40,004.33

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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.