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Finding the Fourth Proportional to 14,319.54, 19,753.74 and 9,004.32

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Solution

The fourth proportional to 14,319.54, 19,753.74 and 9,004.32 is: 12,421.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,319.54 : 19,753.74 = 9,004.32 : x
  2. Step 2: Convert to fraction form
    14,319.54/19,753.74 = 9,004.32/x
  3. Step 3: Cross multiply
    14,319.54x = 19,753.74 × 9,004.32
  4. Step 4: Simplify right side
    14,319.54x = 177,868,996.16
  5. Step 5: Solve for x
    x = 177,868,996.16/14,319.54
  6. Step 6: Final answer
    x = 12,421.42

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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.