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Finding the Fourth Proportional to 56,412.68, 84,626.22 and 18,956.68

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Solution

The fourth proportional to 56,412.68, 84,626.22 and 18,956.68 is: 28,437.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,412.68 : 84,626.22 = 18,956.68 : x
  2. Step 2: Convert to fraction form
    56,412.68/84,626.22 = 18,956.68/x
  3. Step 3: Cross multiply
    56,412.68x = 84,626.22 × 18,956.68
  4. Step 4: Simplify right side
    56,412.68x = 1,604,232,172.15
  5. Step 5: Solve for x
    x = 1,604,232,172.15/56,412.68
  6. Step 6: Final answer
    x = 28,437.44

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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.