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Finding the Fourth Proportional to 15,898.80, 23,848.20 and 5,510.55

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Solution

The fourth proportional to 15,898.80, 23,848.20 and 5,510.55 is: 8,265.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,898.80 : 23,848.20 = 5,510.55 : x
  2. Step 2: Convert to fraction form
    15,898.80/23,848.20 = 5,510.55/x
  3. Step 3: Cross multiply
    15,898.80x = 23,848.20 × 5,510.55
  4. Step 4: Simplify right side
    15,898.80x = 131,416,698.51
  5. Step 5: Solve for x
    x = 131,416,698.51/15,898.80
  6. Step 6: Final answer
    x = 8,265.83

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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.