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Finding the Fourth Proportional to 45,987.66, 68,925.69 and 32,639.58

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Solution

The fourth proportional to 45,987.66, 68,925.69 and 32,639.58 is: 48,919.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,987.66 : 68,925.69 = 32,639.58 : x
  2. Step 2: Convert to fraction form
    45,987.66/68,925.69 = 32,639.58/x
  3. Step 3: Cross multiply
    45,987.66x = 68,925.69 × 32,639.58
  4. Step 4: Simplify right side
    45,987.66x = 2,249,705,572.81
  5. Step 5: Solve for x
    x = 2,249,705,572.81/45,987.66
  6. Step 6: Final answer
    x = 48,919.77

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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.