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Finding the Fourth Proportional to 32,455.70, 48,683.55 and 12,734.90

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Solution

The fourth proportional to 32,455.70, 48,683.55 and 12,734.90 is: 19,102.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,455.70 : 48,683.55 = 12,734.90 : x
  2. Step 2: Convert to fraction form
    32,455.70/48,683.55 = 12,734.90/x
  3. Step 3: Cross multiply
    32,455.70x = 48,683.55 × 12,734.90
  4. Step 4: Simplify right side
    32,455.70x = 619,980,140.90
  5. Step 5: Solve for x
    x = 619,980,140.90/32,455.70
  6. Step 6: Final answer
    x = 19,102.35

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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.