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Finding the Fourth Proportional to 64,395.16, 88,908.47 and 40,232.91

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Solution

The fourth proportional to 64,395.16, 88,908.47 and 40,232.91 is: 55,548.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,395.16 : 88,908.47 = 40,232.91 : x
  2. Step 2: Convert to fraction form
    64,395.16/88,908.47 = 40,232.91/x
  3. Step 3: Cross multiply
    64,395.16x = 88,908.47 × 40,232.91
  4. Step 4: Simplify right side
    64,395.16x = 3,577,046,471.75
  5. Step 5: Solve for x
    x = 3,577,046,471.75/64,395.16
  6. Step 6: Final answer
    x = 55,548.37

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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.