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Finding the Fourth Proportional to 67,380.80, 93,023.52 and 46,721.60

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Solution

The fourth proportional to 67,380.80, 93,023.52 and 46,721.60 is: 64,502.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,380.80 : 93,023.52 = 46,721.60 : x
  2. Step 2: Convert to fraction form
    67,380.80/93,023.52 = 46,721.60/x
  3. Step 3: Cross multiply
    67,380.80x = 93,023.52 × 46,721.60
  4. Step 4: Simplify right side
    67,380.80x = 4,346,207,692.03
  5. Step 5: Solve for x
    x = 4,346,207,692.03/67,380.80
  6. Step 6: Final answer
    x = 64,502.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.