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Finding the Fourth Proportional to 64,975.52, 89,687.84 and 38,108.22

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Solution

The fourth proportional to 64,975.52, 89,687.84 and 38,108.22 is: 52,602.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,975.52 : 89,687.84 = 38,108.22 : x
  2. Step 2: Convert to fraction form
    64,975.52/89,687.84 = 38,108.22/x
  3. Step 3: Cross multiply
    64,975.52x = 89,687.84 × 38,108.22
  4. Step 4: Simplify right side
    64,975.52x = 3,417,843,747.50
  5. Step 5: Solve for x
    x = 3,417,843,747.50/64,975.52
  6. Step 6: Final answer
    x = 52,602.03

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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.