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Finding the Fourth Proportional to 19,248.65, 28,872.98 and 7,243.06

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Solution

The fourth proportional to 19,248.65, 28,872.98 and 7,243.06 is: 10,864.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,248.65 : 28,872.98 = 7,243.06 : x
  2. Step 2: Convert to fraction form
    19,248.65/28,872.98 = 7,243.06/x
  3. Step 3: Cross multiply
    19,248.65x = 28,872.98 × 7,243.06
  4. Step 4: Simplify right side
    19,248.65x = 209,128,753.56
  5. Step 5: Solve for x
    x = 209,128,753.56/19,248.65
  6. Step 6: Final answer
    x = 10,864.59

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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.