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Finding the Fourth Proportional to 34,507.60, 51,683.64 and 20,627.60

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Solution

The fourth proportional to 34,507.60, 51,683.64 and 20,627.60 is: 30,894.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,507.60 : 51,683.64 = 20,627.60 : x
  2. Step 2: Convert to fraction form
    34,507.60/51,683.64 = 20,627.60/x
  3. Step 3: Cross multiply
    34,507.60x = 51,683.64 × 20,627.60
  4. Step 4: Simplify right side
    34,507.60x = 1,066,109,452.46
  5. Step 5: Solve for x
    x = 1,066,109,452.46/34,507.60
  6. Step 6: Final answer
    x = 30,894.92

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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.