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Finding the Fourth Proportional to 64,853.45, 89,463.73 and 52,767.45

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Solution

The fourth proportional to 64,853.45, 89,463.73 and 52,767.45 is: 72,791.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,853.45 : 89,463.73 = 52,767.45 : x
  2. Step 2: Convert to fraction form
    64,853.45/89,463.73 = 52,767.45/x
  3. Step 3: Cross multiply
    64,853.45x = 89,463.73 × 52,767.45
  4. Step 4: Simplify right side
    64,853.45x = 4,720,772,718.20
  5. Step 5: Solve for x
    x = 4,720,772,718.20/64,853.45
  6. Step 6: Final answer
    x = 72,791.38

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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.