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Finding the Fourth Proportional to 92,543.08, 138,815 and 25,983.76

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Solution

The fourth proportional to 92,543.08, 138,815 and 25,983.76 is: 38,975.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,543.08 : 138,815 = 25,983.76 : x
  2. Step 2: Convert to fraction form
    92,543.08/138,815 = 25,983.76/x
  3. Step 3: Cross multiply
    92,543.08x = 138,815 × 25,983.76
  4. Step 4: Simplify right side
    92,543.08x = 3,606,935,644.40
  5. Step 5: Solve for x
    x = 3,606,935,644.40/92,543.08
  6. Step 6: Final answer
    x = 38,975.75

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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.