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Finding the Fourth Proportional to 56,368.77, 84,560.94 and 18,939.55

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Solution

The fourth proportional to 56,368.77, 84,560.94 and 18,939.55 is: 28,411.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,368.77 : 84,560.94 = 18,939.55 : x
  2. Step 2: Convert to fraction form
    56,368.77/84,560.94 = 18,939.55/x
  3. Step 3: Cross multiply
    56,368.77x = 84,560.94 × 18,939.55
  4. Step 4: Simplify right side
    56,368.77x = 1,601,545,633.67
  5. Step 5: Solve for x
    x = 1,601,545,633.67/56,368.77
  6. Step 6: Final answer
    x = 28,411.93

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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.