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Finding the Fourth Proportional to 46,656.40, 69,984.60 and 25,588.30

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Solution

The fourth proportional to 46,656.40, 69,984.60 and 25,588.30 is: 38,382.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,656.40 : 69,984.60 = 25,588.30 : x
  2. Step 2: Convert to fraction form
    46,656.40/69,984.60 = 25,588.30/x
  3. Step 3: Cross multiply
    46,656.40x = 69,984.60 × 25,588.30
  4. Step 4: Simplify right side
    46,656.40x = 1,790,786,940.18
  5. Step 5: Solve for x
    x = 1,790,786,940.18/46,656.40
  6. Step 6: Final answer
    x = 38,382.45

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Similar ratio
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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.