Home / 26,005.10-39,007.65-19,784.30

Finding the Fourth Proportional to 26,005.10, 39,007.65 and 19,784.30

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Solution

The fourth proportional to 26,005.10, 39,007.65 and 19,784.30 is: 29,676.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,005.10 : 39,007.65 = 19,784.30 : x
  2. Step 2: Convert to fraction form
    26,005.10/39,007.65 = 19,784.30/x
  3. Step 3: Cross multiply
    26,005.10x = 39,007.65 × 19,784.30
  4. Step 4: Simplify right side
    26,005.10x = 771,739,049.90
  5. Step 5: Solve for x
    x = 771,739,049.90/26,005.10
  6. Step 6: Final answer
    x = 29,676.45

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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.