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Finding the Fourth Proportional to 64,508.80, 96,763.20 and 48,762.40

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Solution

The fourth proportional to 64,508.80, 96,763.20 and 48,762.40 is: 73,143.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,508.80 : 96,763.20 = 48,762.40 : x
  2. Step 2: Convert to fraction form
    64,508.80/96,763.20 = 48,762.40/x
  3. Step 3: Cross multiply
    64,508.80x = 96,763.20 × 48,762.40
  4. Step 4: Simplify right side
    64,508.80x = 4,718,405,863.68
  5. Step 5: Solve for x
    x = 4,718,405,863.68/64,508.80
  6. Step 6: Final answer
    x = 73,143.60

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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.