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Finding the Fourth Proportional to 46,415.80, 69,623.70 and 28,876.60

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Solution

The fourth proportional to 46,415.80, 69,623.70 and 28,876.60 is: 43,314.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,415.80 : 69,623.70 = 28,876.60 : x
  2. Step 2: Convert to fraction form
    46,415.80/69,623.70 = 28,876.60/x
  3. Step 3: Cross multiply
    46,415.80x = 69,623.70 × 28,876.60
  4. Step 4: Simplify right side
    46,415.80x = 2,010,495,735.42
  5. Step 5: Solve for x
    x = 2,010,495,735.42/46,415.80
  6. Step 6: Final answer
    x = 43,314.90

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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.