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Finding the Fourth Proportional to 45,641.36, 62,978.86 and 25,495.68

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Solution

The fourth proportional to 45,641.36, 62,978.86 and 25,495.68 is: 35,180.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,641.36 : 62,978.86 = 25,495.68 : x
  2. Step 2: Convert to fraction form
    45,641.36/62,978.86 = 25,495.68/x
  3. Step 3: Cross multiply
    45,641.36x = 62,978.86 × 25,495.68
  4. Step 4: Simplify right side
    45,641.36x = 1,605,688,861.32
  5. Step 5: Solve for x
    x = 1,605,688,861.32/45,641.36
  6. Step 6: Final answer
    x = 35,180.57

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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.