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Finding the Fourth Proportional to 64,816.88, 89,447.35 and 35,008.88

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Solution

The fourth proportional to 64,816.88, 89,447.35 and 35,008.88 is: 48,312.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,816.88 : 89,447.35 = 35,008.88 : x
  2. Step 2: Convert to fraction form
    64,816.88/89,447.35 = 35,008.88/x
  3. Step 3: Cross multiply
    64,816.88x = 89,447.35 × 35,008.88
  4. Step 4: Simplify right side
    64,816.88x = 3,131,451,095.23
  5. Step 5: Solve for x
    x = 3,131,451,095.23/64,816.88
  6. Step 6: Final answer
    x = 48,312.28

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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.