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Finding the Fourth Proportional to 46,643.58, 69,970.24 and 19,992.24

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Solution

The fourth proportional to 46,643.58, 69,970.24 and 19,992.24 is: 29,990.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,643.58 : 69,970.24 = 19,992.24 : x
  2. Step 2: Convert to fraction form
    46,643.58/69,970.24 = 19,992.24/x
  3. Step 3: Cross multiply
    46,643.58x = 69,970.24 × 19,992.24
  4. Step 4: Simplify right side
    46,643.58x = 1,398,861,830.94
  5. Step 5: Solve for x
    x = 1,398,861,830.94/46,643.58
  6. Step 6: Final answer
    x = 29,990.45

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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.