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Finding the Fourth Proportional to 25,653.60, 38,504.70 and 15,812.10

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Solution

The fourth proportional to 25,653.60, 38,504.70 and 15,812.10 is: 23,733.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,653.60 : 38,504.70 = 15,812.10 : x
  2. Step 2: Convert to fraction form
    25,653.60/38,504.70 = 15,812.10/x
  3. Step 3: Cross multiply
    25,653.60x = 38,504.70 × 15,812.10
  4. Step 4: Simplify right side
    25,653.60x = 608,840,166.87
  5. Step 5: Solve for x
    x = 608,840,166.87/25,653.60
  6. Step 6: Final answer
    x = 23,733.13

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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.