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Finding the Fourth Proportional to 56,807.86, 85,210.56 and 15,254.86

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Solution

The fourth proportional to 56,807.86, 85,210.56 and 15,254.86 is: 22,881.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,807.86 : 85,210.56 = 15,254.86 : x
  2. Step 2: Convert to fraction form
    56,807.86/85,210.56 = 15,254.86/x
  3. Step 3: Cross multiply
    56,807.86x = 85,210.56 × 15,254.86
  4. Step 4: Simplify right side
    56,807.86x = 1,299,875,163.32
  5. Step 5: Solve for x
    x = 1,299,875,163.32/56,807.86
  6. Step 6: Final answer
    x = 22,881.96

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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.