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Finding the Fourth Proportional to 15,870.86, 23,818.24 and 10,861.24

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Solution

The fourth proportional to 15,870.86, 23,818.24 and 10,861.24 is: 16,300.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,870.86 : 23,818.24 = 10,861.24 : x
  2. Step 2: Convert to fraction form
    15,870.86/23,818.24 = 10,861.24/x
  3. Step 3: Cross multiply
    15,870.86x = 23,818.24 × 10,861.24
  4. Step 4: Simplify right side
    15,870.86x = 258,695,621.02
  5. Step 5: Solve for x
    x = 258,695,621.02/15,870.86
  6. Step 6: Final answer
    x = 16,300.04

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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.