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Finding the Fourth Proportional to 29,085.60, 40,114.80 and 18,477.84

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Solution

The fourth proportional to 29,085.60, 40,114.80 and 18,477.84 is: 25,484.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,085.60 : 40,114.80 = 18,477.84 : x
  2. Step 2: Convert to fraction form
    29,085.60/40,114.80 = 18,477.84/x
  3. Step 3: Cross multiply
    29,085.60x = 40,114.80 × 18,477.84
  4. Step 4: Simplify right side
    29,085.60x = 741,234,856.03
  5. Step 5: Solve for x
    x = 741,234,856.03/29,085.60
  6. Step 6: Final answer
    x = 25,484.60

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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.