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Finding the Fourth Proportional to 51,283.80, 76,925.70 and 48,864.60

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Solution

The fourth proportional to 51,283.80, 76,925.70 and 48,864.60 is: 73,296.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,283.80 : 76,925.70 = 48,864.60 : x
  2. Step 2: Convert to fraction form
    51,283.80/76,925.70 = 48,864.60/x
  3. Step 3: Cross multiply
    51,283.80x = 76,925.70 × 48,864.60
  4. Step 4: Simplify right side
    51,283.80x = 3,758,943,560.22
  5. Step 5: Solve for x
    x = 3,758,943,560.22/51,283.80
  6. Step 6: Final answer
    x = 73,296.90

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1.5x scale

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.