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Finding the Fourth Proportional to 58,281.30, 80,428.08 and 32,787.69

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Solution

The fourth proportional to 58,281.30, 80,428.08 and 32,787.69 is: 45,246.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,281.30 : 80,428.08 = 32,787.69 : x
  2. Step 2: Convert to fraction form
    58,281.30/80,428.08 = 32,787.69/x
  3. Step 3: Cross multiply
    58,281.30x = 80,428.08 × 32,787.69
  4. Step 4: Simplify right side
    58,281.30x = 2,637,050,954.34
  5. Step 5: Solve for x
    x = 2,637,050,954.34/58,281.30
  6. Step 6: Final answer
    x = 45,246.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.