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Finding the Fourth Proportional to 25,651.60, 38,501.70 and 15,810.10

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Solution

The fourth proportional to 25,651.60, 38,501.70 and 15,810.10 is: 23,730.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,651.60 : 38,501.70 = 15,810.10 : x
  2. Step 2: Convert to fraction form
    25,651.60/38,501.70 = 15,810.10/x
  3. Step 3: Cross multiply
    25,651.60x = 38,501.70 × 15,810.10
  4. Step 4: Simplify right side
    25,651.60x = 608,715,727.17
  5. Step 5: Solve for x
    x = 608,715,727.17/25,651.60
  6. Step 6: Final answer
    x = 23,730.13

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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.