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Finding the Fourth Proportional to 52,129.28, 71,905.60 and 34,225.28

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Solution

The fourth proportional to 52,129.28, 71,905.60 and 34,225.28 is: 47,209.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,129.28 : 71,905.60 = 34,225.28 : x
  2. Step 2: Convert to fraction form
    52,129.28/71,905.60 = 34,225.28/x
  3. Step 3: Cross multiply
    52,129.28x = 71,905.60 × 34,225.28
  4. Step 4: Simplify right side
    52,129.28x = 2,460,989,293.57
  5. Step 5: Solve for x
    x = 2,460,989,293.57/52,129.28
  6. Step 6: Final answer
    x = 47,209.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.