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Finding the Fourth Proportional to 64,655.45, 96,983.16 and 17,908.32

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Solution

The fourth proportional to 64,655.45, 96,983.16 and 17,908.32 is: 26,862.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,655.45 : 96,983.16 = 17,908.32 : x
  2. Step 2: Convert to fraction form
    64,655.45/96,983.16 = 17,908.32/x
  3. Step 3: Cross multiply
    64,655.45x = 96,983.16 × 17,908.32
  4. Step 4: Simplify right side
    64,655.45x = 1,736,805,463.89
  5. Step 5: Solve for x
    x = 1,736,805,463.89/64,655.45
  6. Step 6: Final answer
    x = 26,862.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.