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Finding the Fourth Proportional to 51,323.80, 76,985.70 and 44,325.40

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Solution

The fourth proportional to 51,323.80, 76,985.70 and 44,325.40 is: 66,488.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,323.80 : 76,985.70 = 44,325.40 : x
  2. Step 2: Convert to fraction form
    51,323.80/76,985.70 = 44,325.40/x
  3. Step 3: Cross multiply
    51,323.80x = 76,985.70 × 44,325.40
  4. Step 4: Simplify right side
    51,323.80x = 3,412,421,946.78
  5. Step 5: Solve for x
    x = 3,412,421,946.78/51,323.80
  6. Step 6: Final answer
    x = 66,488.10

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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.