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Finding the Fourth Proportional to 19,333.30, 28,998.86 and 5,292.30

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Solution

The fourth proportional to 19,333.30, 28,998.86 and 5,292.30 is: 7,938.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,333.30 : 28,998.86 = 5,292.30 : x
  2. Step 2: Convert to fraction form
    19,333.30/28,998.86 = 5,292.30/x
  3. Step 3: Cross multiply
    19,333.30x = 28,998.86 × 5,292.30
  4. Step 4: Simplify right side
    19,333.30x = 153,470,666.78
  5. Step 5: Solve for x
    x = 153,470,666.78/19,333.30
  6. Step 6: Final answer
    x = 7,938.15

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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.