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Finding the Fourth Proportional to 61,923.63, 85,490.04 and 40,764.41

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Solution

The fourth proportional to 61,923.63, 85,490.04 and 40,764.41 is: 56,278.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,923.63 : 85,490.04 = 40,764.41 : x
  2. Step 2: Convert to fraction form
    61,923.63/85,490.04 = 40,764.41/x
  3. Step 3: Cross multiply
    61,923.63x = 85,490.04 × 40,764.41
  4. Step 4: Simplify right side
    61,923.63x = 3,484,951,041.48
  5. Step 5: Solve for x
    x = 3,484,951,041.48/61,923.63
  6. Step 6: Final answer
    x = 56,278.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.