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Finding the Fourth Proportional to 30,483.76, 45,599.16 and 28,617.52

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Solution

The fourth proportional to 30,483.76, 45,599.16 and 28,617.52 is: 42,807.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,483.76 : 45,599.16 = 28,617.52 : x
  2. Step 2: Convert to fraction form
    30,483.76/45,599.16 = 28,617.52/x
  3. Step 3: Cross multiply
    30,483.76x = 45,599.16 × 28,617.52
  4. Step 4: Simplify right side
    30,483.76x = 1,304,934,873.28
  5. Step 5: Solve for x
    x = 1,304,934,873.28/30,483.76
  6. Step 6: Final answer
    x = 42,807.54

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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.