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Finding the Fourth Proportional to 46,901.78, 64,724.64 and 25,680.86

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Solution

The fourth proportional to 46,901.78, 64,724.64 and 25,680.86 is: 35,439.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,901.78 : 64,724.64 = 25,680.86 : x
  2. Step 2: Convert to fraction form
    46,901.78/64,724.64 = 25,680.86/x
  3. Step 3: Cross multiply
    46,901.78x = 64,724.64 × 25,680.86
  4. Step 4: Simplify right side
    46,901.78x = 1,662,184,418.39
  5. Step 5: Solve for x
    x = 1,662,184,418.39/46,901.78
  6. Step 6: Final answer
    x = 35,439.69

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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.