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Finding the Fourth Proportional to 65,970.63, 99,009.41 and 32,689.35

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Solution

The fourth proportional to 65,970.63, 99,009.41 and 32,689.35 is: 49,060.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,970.63 : 99,009.41 = 32,689.35 : x
  2. Step 2: Convert to fraction form
    65,970.63/99,009.41 = 32,689.35/x
  3. Step 3: Cross multiply
    65,970.63x = 99,009.41 × 32,689.35
  4. Step 4: Simplify right side
    65,970.63x = 3,236,553,093.34
  5. Step 5: Solve for x
    x = 3,236,553,093.34/65,970.63
  6. Step 6: Final answer
    x = 49,060.52

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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.