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Finding the Fourth Proportional to 40,302.45, 56,481.75 and 40,302.45

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Solution

The fourth proportional to 40,302.45, 56,481.75 and 40,302.45 is: 56,481.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,302.45 : 56,481.75 = 40,302.45 : x
  2. Step 2: Convert to fraction form
    40,302.45/56,481.75 = 40,302.45/x
  3. Step 3: Cross multiply
    40,302.45x = 56,481.75 × 40,302.45
  4. Step 4: Simplify right side
    40,302.45x = 2,276,352,905.29
  5. Step 5: Solve for x
    x = 2,276,352,905.29/40,302.45
  6. Step 6: Final answer
    x = 56,481.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.