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Finding the Fourth Proportional to 19,893.40, 29,853.90 and 14,973.40

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Solution

The fourth proportional to 19,893.40, 29,853.90 and 14,973.40 is: 22,470.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,893.40 : 29,853.90 = 14,973.40 : x
  2. Step 2: Convert to fraction form
    19,893.40/29,853.90 = 14,973.40/x
  3. Step 3: Cross multiply
    19,893.40x = 29,853.90 × 14,973.40
  4. Step 4: Simplify right side
    19,893.40x = 447,014,386.26
  5. Step 5: Solve for x
    x = 447,014,386.26/19,893.40
  6. Step 6: Final answer
    x = 22,470.49

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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.