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Finding the Fourth Proportional to 18,842.55, 28,242.28 and 10,526.41

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Solution

The fourth proportional to 18,842.55, 28,242.28 and 10,526.41 is: 15,777.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,842.55 : 28,242.28 = 10,526.41 : x
  2. Step 2: Convert to fraction form
    18,842.55/28,242.28 = 10,526.41/x
  3. Step 3: Cross multiply
    18,842.55x = 28,242.28 × 10,526.41
  4. Step 4: Simplify right side
    18,842.55x = 297,289,818.61
  5. Step 5: Solve for x
    x = 297,289,818.61/18,842.55
  6. Step 6: Final answer
    x = 15,777.58

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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.