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Finding the Fourth Proportional to 46,239.60, 69,311.88 and 19,922.16

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Solution

The fourth proportional to 46,239.60, 69,311.88 and 19,922.16 is: 29,862.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,239.60 : 69,311.88 = 19,922.16 : x
  2. Step 2: Convert to fraction form
    46,239.60/69,311.88 = 19,922.16/x
  3. Step 3: Cross multiply
    46,239.60x = 69,311.88 × 19,922.16
  4. Step 4: Simplify right side
    46,239.60x = 1,380,842,363.26
  5. Step 5: Solve for x
    x = 1,380,842,363.26/46,239.60
  6. Step 6: Final answer
    x = 29,862.77

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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.