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Finding the Fourth Proportional to 48,810.60, 73,215.90 and 48,292.20

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Solution

The fourth proportional to 48,810.60, 73,215.90 and 48,292.20 is: 72,438.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,810.60 : 73,215.90 = 48,292.20 : x
  2. Step 2: Convert to fraction form
    48,810.60/73,215.90 = 48,292.20/x
  3. Step 3: Cross multiply
    48,810.60x = 73,215.90 × 48,292.20
  4. Step 4: Simplify right side
    48,810.60x = 3,535,756,885.98
  5. Step 5: Solve for x
    x = 3,535,756,885.98/48,810.60
  6. Step 6: Final answer
    x = 72,438.30

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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.