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Finding the Fourth Proportional to 52,297.28, 78,479.28 and 19,014.15

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Solution

The fourth proportional to 52,297.28, 78,479.28 and 19,014.15 is: 28,533.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,297.28 : 78,479.28 = 19,014.15 : x
  2. Step 2: Convert to fraction form
    52,297.28/78,479.28 = 19,014.15/x
  3. Step 3: Cross multiply
    52,297.28x = 78,479.28 × 19,014.15
  4. Step 4: Simplify right side
    52,297.28x = 1,492,216,801.81
  5. Step 5: Solve for x
    x = 1,492,216,801.81/52,297.28
  6. Step 6: Final answer
    x = 28,533.35

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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.