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Finding the Fourth Proportional to 56,783.79, 85,111.11 and 34,548.17

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Solution

The fourth proportional to 56,783.79, 85,111.11 and 34,548.17 is: 51,782.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,783.79 : 85,111.11 = 34,548.17 : x
  2. Step 2: Convert to fraction form
    56,783.79/85,111.11 = 34,548.17/x
  3. Step 3: Cross multiply
    56,783.79x = 85,111.11 × 34,548.17
  4. Step 4: Simplify right side
    56,783.79x = 2,940,432,671.61
  5. Step 5: Solve for x
    x = 2,940,432,671.61/56,783.79
  6. Step 6: Final answer
    x = 51,782.96

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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.