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Finding the Fourth Proportional to 18,878.60, 26,052.60 and 10,495.16

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Solution

The fourth proportional to 18,878.60, 26,052.60 and 10,495.16 is: 14,483.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,878.60 : 26,052.60 = 10,495.16 : x
  2. Step 2: Convert to fraction form
    18,878.60/26,052.60 = 10,495.16/x
  3. Step 3: Cross multiply
    18,878.60x = 26,052.60 × 10,495.16
  4. Step 4: Simplify right side
    18,878.60x = 273,426,205.42
  5. Step 5: Solve for x
    x = 273,426,205.42/18,878.60
  6. Step 6: Final answer
    x = 14,483.39

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1.5x scale

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.