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Finding the Fourth Proportional to 71,325.30, 106,987.95 and 36,333.30

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Solution

The fourth proportional to 71,325.30, 106,987.95 and 36,333.30 is: 54,499.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,325.30 : 106,987.95 = 36,333.30 : x
  2. Step 2: Convert to fraction form
    71,325.30/106,987.95 = 36,333.30/x
  3. Step 3: Cross multiply
    71,325.30x = 106,987.95 × 36,333.30
  4. Step 4: Simplify right side
    71,325.30x = 3,887,225,283.74
  5. Step 5: Solve for x
    x = 3,887,225,283.74/71,325.30
  6. Step 6: Final answer
    x = 54,499.95

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1.5x scale

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.