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Finding the Fourth Proportional to 51,292.54, 70,785.54 and 29,780.68

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Solution

The fourth proportional to 51,292.54, 70,785.54 and 29,780.68 is: 41,098.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,292.54 : 70,785.54 = 29,780.68 : x
  2. Step 2: Convert to fraction form
    51,292.54/70,785.54 = 29,780.68/x
  3. Step 3: Cross multiply
    51,292.54x = 70,785.54 × 29,780.68
  4. Step 4: Simplify right side
    51,292.54x = 2,108,041,515.37
  5. Step 5: Solve for x
    x = 2,108,041,515.37/51,292.54
  6. Step 6: Final answer
    x = 41,098.40

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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.