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Finding the Fourth Proportional to 46,642.60, 69,963.90 and 40,810.60

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Solution

The fourth proportional to 46,642.60, 69,963.90 and 40,810.60 is: 61,215.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,642.60 : 69,963.90 = 40,810.60 : x
  2. Step 2: Convert to fraction form
    46,642.60/69,963.90 = 40,810.60/x
  3. Step 3: Cross multiply
    46,642.60x = 69,963.90 × 40,810.60
  4. Step 4: Simplify right side
    46,642.60x = 2,855,268,737.34
  5. Step 5: Solve for x
    x = 2,855,268,737.34/46,642.60
  6. Step 6: Final answer
    x = 61,215.90

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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.