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Finding the Fourth Proportional to 14,804.16, 20,438.80 and 14,093.72

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Solution

The fourth proportional to 14,804.16, 20,438.80 and 14,093.72 is: 19,457.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,804.16 : 20,438.80 = 14,093.72 : x
  2. Step 2: Convert to fraction form
    14,804.16/20,438.80 = 14,093.72/x
  3. Step 3: Cross multiply
    14,804.16x = 20,438.80 × 14,093.72
  4. Step 4: Simplify right side
    14,804.16x = 288,058,724.34
  5. Step 5: Solve for x
    x = 288,058,724.34/14,804.16
  6. Step 6: Final answer
    x = 19,457.96

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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.