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Finding the Fourth Proportional to 49,970.20, 74,868.90 and 23,618.20

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Solution

The fourth proportional to 49,970.20, 74,868.90 and 23,618.20 is: 35,386.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,970.20 : 74,868.90 = 23,618.20 : x
  2. Step 2: Convert to fraction form
    49,970.20/74,868.90 = 23,618.20/x
  3. Step 3: Cross multiply
    49,970.20x = 74,868.90 × 23,618.20
  4. Step 4: Simplify right side
    49,970.20x = 1,768,268,653.98
  5. Step 5: Solve for x
    x = 1,768,268,653.98/49,970.20
  6. Step 6: Final answer
    x = 35,386.46

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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.