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Finding the Fourth Proportional to 92,958.72, 139,437.90 and 26,399.46

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Solution

The fourth proportional to 92,958.72, 139,437.90 and 26,399.46 is: 39,599.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,958.72 : 139,437.90 = 26,399.46 : x
  2. Step 2: Convert to fraction form
    92,958.72/139,437.90 = 26,399.46/x
  3. Step 3: Cross multiply
    92,958.72x = 139,437.90 × 26,399.46
  4. Step 4: Simplify right side
    92,958.72x = 3,681,085,263.53
  5. Step 5: Solve for x
    x = 3,681,085,263.53/92,958.72
  6. Step 6: Final answer
    x = 39,599.14

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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.