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Finding the Fourth Proportional to 28,746.66, 43,169.04 and 15,624.66

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Solution

The fourth proportional to 28,746.66, 43,169.04 and 15,624.66 is: 23,463.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,746.66 : 43,169.04 = 15,624.66 : x
  2. Step 2: Convert to fraction form
    28,746.66/43,169.04 = 15,624.66/x
  3. Step 3: Cross multiply
    28,746.66x = 43,169.04 × 15,624.66
  4. Step 4: Simplify right side
    28,746.66x = 674,501,572.53
  5. Step 5: Solve for x
    x = 674,501,572.53/28,746.66
  6. Step 6: Final answer
    x = 23,463.65

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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.