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Finding the Fourth Proportional to 15,881.86, 23,818.94 and 5,349.16

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Solution

The fourth proportional to 15,881.86, 23,818.94 and 5,349.16 is: 8,022.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,881.86 : 23,818.94 = 5,349.16 : x
  2. Step 2: Convert to fraction form
    15,881.86/23,818.94 = 5,349.16/x
  3. Step 3: Cross multiply
    15,881.86x = 23,818.94 × 5,349.16
  4. Step 4: Simplify right side
    15,881.86x = 127,411,344.18
  5. Step 5: Solve for x
    x = 127,411,344.18/15,881.86
  6. Step 6: Final answer
    x = 8,022.44

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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.