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Finding the Fourth Proportional to 56,418, 84,632.13 and 14,865

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Solution

The fourth proportional to 56,418, 84,632.13 and 14,865 is: 22,298.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,418 : 84,632.13 = 14,865 : x
  2. Step 2: Convert to fraction form
    56,418/84,632.13 = 14,865/x
  3. Step 3: Cross multiply
    56,418x = 84,632.13 × 14,865
  4. Step 4: Simplify right side
    56,418x = 1,258,056,612.45
  5. Step 5: Solve for x
    x = 1,258,056,612.45/56,418
  6. Step 6: Final answer
    x = 22,298.85

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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.