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Finding the Fourth Proportional to 51,907.95, 77,810.09 and 25,631.55

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Solution

The fourth proportional to 51,907.95, 77,810.09 and 25,631.55 is: 38,421.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,907.95 : 77,810.09 = 25,631.55 : x
  2. Step 2: Convert to fraction form
    51,907.95/77,810.09 = 25,631.55/x
  3. Step 3: Cross multiply
    51,907.95x = 77,810.09 × 25,631.55
  4. Step 4: Simplify right side
    51,907.95x = 1,994,393,084.18
  5. Step 5: Solve for x
    x = 1,994,393,084.18/51,907.95
  6. Step 6: Final answer
    x = 38,421.73

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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.