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Finding the Fourth Proportional to 64,009.60, 96,014.40 and 32,516.80

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Solution

The fourth proportional to 64,009.60, 96,014.40 and 32,516.80 is: 48,775.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,009.60 : 96,014.40 = 32,516.80 : x
  2. Step 2: Convert to fraction form
    64,009.60/96,014.40 = 32,516.80/x
  3. Step 3: Cross multiply
    64,009.60x = 96,014.40 × 32,516.80
  4. Step 4: Simplify right side
    64,009.60x = 3,122,081,041.92
  5. Step 5: Solve for x
    x = 3,122,081,041.92/64,009.60
  6. Step 6: Final answer
    x = 48,775.20

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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.