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Finding the Fourth Proportional to 56,792.16, 85,135.68 and 21,703.68

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Solution

The fourth proportional to 56,792.16, 85,135.68 and 21,703.68 is: 32,535.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,792.16 : 85,135.68 = 21,703.68 : x
  2. Step 2: Convert to fraction form
    56,792.16/85,135.68 = 21,703.68/x
  3. Step 3: Cross multiply
    56,792.16x = 85,135.68 × 21,703.68
  4. Step 4: Simplify right side
    56,792.16x = 1,847,757,555.30
  5. Step 5: Solve for x
    x = 1,847,757,555.30/56,792.16
  6. Step 6: Final answer
    x = 32,535.43

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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.