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Finding the Fourth Proportional to 34,779.44, 47,995.04 and 19,671.50

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Solution

The fourth proportional to 34,779.44, 47,995.04 and 19,671.50 is: 27,146.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,779.44 : 47,995.04 = 19,671.50 : x
  2. Step 2: Convert to fraction form
    34,779.44/47,995.04 = 19,671.50/x
  3. Step 3: Cross multiply
    34,779.44x = 47,995.04 × 19,671.50
  4. Step 4: Simplify right side
    34,779.44x = 944,134,429.36
  5. Step 5: Solve for x
    x = 944,134,429.36/34,779.44
  6. Step 6: Final answer
    x = 27,146.34

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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.