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Finding the Fourth Proportional to 32,688.90, 49,053.42 and 25,985.88

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Solution

The fourth proportional to 32,688.90, 49,053.42 and 25,985.88 is: 38,994.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,688.90 : 49,053.42 = 25,985.88 : x
  2. Step 2: Convert to fraction form
    32,688.90/49,053.42 = 25,985.88/x
  3. Step 3: Cross multiply
    32,688.90x = 49,053.42 × 25,985.88
  4. Step 4: Simplify right side
    32,688.90x = 1,274,696,285.71
  5. Step 5: Solve for x
    x = 1,274,696,285.71/32,688.90
  6. Step 6: Final answer
    x = 38,994.77

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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.