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Finding the Fourth Proportional to 14,804.88, 20,421.34 and 11,260.32

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Solution

The fourth proportional to 14,804.88, 20,421.34 and 11,260.32 is: 15,532.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,804.88 : 20,421.34 = 11,260.32 : x
  2. Step 2: Convert to fraction form
    14,804.88/20,421.34 = 11,260.32/x
  3. Step 3: Cross multiply
    14,804.88x = 20,421.34 × 11,260.32
  4. Step 4: Simplify right side
    14,804.88x = 229,950,823.23
  5. Step 5: Solve for x
    x = 229,950,823.23/14,804.88
  6. Step 6: Final answer
    x = 15,532.10

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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.