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Finding the Fourth Proportional to 18,875.56, 26,047.56 and 10,492.60

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Solution

The fourth proportional to 18,875.56, 26,047.56 and 10,492.60 is: 14,479.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,875.56 : 26,047.56 = 10,492.60 : x
  2. Step 2: Convert to fraction form
    18,875.56/26,047.56 = 10,492.60/x
  3. Step 3: Cross multiply
    18,875.56x = 26,047.56 × 10,492.60
  4. Step 4: Simplify right side
    18,875.56x = 273,306,628.06
  5. Step 5: Solve for x
    x = 273,306,628.06/18,875.56
  6. Step 6: Final answer
    x = 14,479.39

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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.