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Finding the Fourth Proportional to 10,364.36, 15,543.18 and 3,437

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Solution

The fourth proportional to 10,364.36, 15,543.18 and 3,437 is: 5,154.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,364.36 : 15,543.18 = 3,437 : x
  2. Step 2: Convert to fraction form
    10,364.36/15,543.18 = 3,437/x
  3. Step 3: Cross multiply
    10,364.36x = 15,543.18 × 3,437
  4. Step 4: Simplify right side
    10,364.36x = 53,421,909.66
  5. Step 5: Solve for x
    x = 53,421,909.66/10,364.36
  6. Step 6: Final answer
    x = 5,154.39

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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.