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Finding the Fourth Proportional to 51,530.60, 72,350.20 and 51,530.60

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Solution

The fourth proportional to 51,530.60, 72,350.20 and 51,530.60 is: 72,350.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,530.60 : 72,350.20 = 51,530.60 : x
  2. Step 2: Convert to fraction form
    51,530.60/72,350.20 = 51,530.60/x
  3. Step 3: Cross multiply
    51,530.60x = 72,350.20 × 51,530.60
  4. Step 4: Simplify right side
    51,530.60x = 3,728,249,216.12
  5. Step 5: Solve for x
    x = 3,728,249,216.12/51,530.60
  6. Step 6: Final answer
    x = 72,350.20

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.