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Finding the Fourth Proportional to 32,068.71, 48,081.20 and 18,913.91

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Solution

The fourth proportional to 32,068.71, 48,081.20 and 18,913.91 is: 28,357.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,068.71 : 48,081.20 = 18,913.91 : x
  2. Step 2: Convert to fraction form
    32,068.71/48,081.20 = 18,913.91/x
  3. Step 3: Cross multiply
    32,068.71x = 48,081.20 × 18,913.91
  4. Step 4: Simplify right side
    32,068.71x = 909,403,154.52
  5. Step 5: Solve for x
    x = 909,403,154.52/32,068.71
  6. Step 6: Final answer
    x = 28,357.96

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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.