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Finding the Fourth Proportional to 48,097.72, 72,107.72 and 20,038.92

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Solution

The fourth proportional to 48,097.72, 72,107.72 and 20,038.92 is: 30,042.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,097.72 : 72,107.72 = 20,038.92 : x
  2. Step 2: Convert to fraction form
    48,097.72/72,107.72 = 20,038.92/x
  3. Step 3: Cross multiply
    48,097.72x = 72,107.72 × 20,038.92
  4. Step 4: Simplify right side
    48,097.72x = 1,444,960,832.46
  5. Step 5: Solve for x
    x = 1,444,960,832.46/48,097.72
  6. Step 6: Final answer
    x = 30,042.19

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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.