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Finding the Fourth Proportional to 18,153, 25,051.14 and 10,705.32

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Solution

The fourth proportional to 18,153, 25,051.14 and 10,705.32 is: 14,773.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,153 : 25,051.14 = 10,705.32 : x
  2. Step 2: Convert to fraction form
    18,153/25,051.14 = 10,705.32/x
  3. Step 3: Cross multiply
    18,153x = 25,051.14 × 10,705.32
  4. Step 4: Simplify right side
    18,153x = 268,180,470.06
  5. Step 5: Solve for x
    x = 268,180,470.06/18,153
  6. Step 6: Final answer
    x = 14,773.34

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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.