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Finding the Fourth Proportional to 56,390.76, 84,586.68 and 14,837.76

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Solution

The fourth proportional to 56,390.76, 84,586.68 and 14,837.76 is: 22,256.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,390.76 : 84,586.68 = 14,837.76 : x
  2. Step 2: Convert to fraction form
    56,390.76/84,586.68 = 14,837.76/x
  3. Step 3: Cross multiply
    56,390.76x = 84,586.68 × 14,837.76
  4. Step 4: Simplify right side
    56,390.76x = 1,255,076,857.04
  5. Step 5: Solve for x
    x = 1,255,076,857.04/56,390.76
  6. Step 6: Final answer
    x = 22,256.78

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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.