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Finding the Fourth Proportional to 19,893.78, 29,783.07 and 14,984.10

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Solution

The fourth proportional to 19,893.78, 29,783.07 and 14,984.10 is: 22,432.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,893.78 : 29,783.07 = 14,984.10 : x
  2. Step 2: Convert to fraction form
    19,893.78/29,783.07 = 14,984.10/x
  3. Step 3: Cross multiply
    19,893.78x = 29,783.07 × 14,984.10
  4. Step 4: Simplify right side
    19,893.78x = 446,272,499.19
  5. Step 5: Solve for x
    x = 446,272,499.19/19,893.78
  6. Step 6: Final answer
    x = 22,432.77

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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.