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Finding the Fourth Proportional to 22,779.63, 34,165.80 and 7,200.90

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Solution

The fourth proportional to 22,779.63, 34,165.80 and 7,200.90 is: 10,800.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,779.63 : 34,165.80 = 7,200.90 : x
  2. Step 2: Convert to fraction form
    22,779.63/34,165.80 = 7,200.90/x
  3. Step 3: Cross multiply
    22,779.63x = 34,165.80 × 7,200.90
  4. Step 4: Simplify right side
    22,779.63x = 246,024,509.22
  5. Step 5: Solve for x
    x = 246,024,509.22/22,779.63
  6. Step 6: Final answer
    x = 10,800.20

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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.