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Finding the Fourth Proportional to 19,468.40, 29,159.40 and 16,876.40

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Solution

The fourth proportional to 19,468.40, 29,159.40 and 16,876.40 is: 25,277.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,468.40 : 29,159.40 = 16,876.40 : x
  2. Step 2: Convert to fraction form
    19,468.40/29,159.40 = 16,876.40/x
  3. Step 3: Cross multiply
    19,468.40x = 29,159.40 × 16,876.40
  4. Step 4: Simplify right side
    19,468.40x = 492,105,698.16
  5. Step 5: Solve for x
    x = 492,105,698.16/19,468.40
  6. Step 6: Final answer
    x = 25,277.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.