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Finding the Fourth Proportional to 15,237.80, 22,859.56 and 6,918.42

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Solution

The fourth proportional to 15,237.80, 22,859.56 and 6,918.42 is: 10,378.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,237.80 : 22,859.56 = 6,918.42 : x
  2. Step 2: Convert to fraction form
    15,237.80/22,859.56 = 6,918.42/x
  3. Step 3: Cross multiply
    15,237.80x = 22,859.56 × 6,918.42
  4. Step 4: Simplify right side
    15,237.80x = 158,152,037.10
  5. Step 5: Solve for x
    x = 158,152,037.10/15,237.80
  6. Step 6: Final answer
    x = 10,378.93

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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.