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Finding the Fourth Proportional to 64,215.60, 96,323.40 and 44,516.40

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Solution

The fourth proportional to 64,215.60, 96,323.40 and 44,516.40 is: 66,774.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,215.60 : 96,323.40 = 44,516.40 : x
  2. Step 2: Convert to fraction form
    64,215.60/96,323.40 = 44,516.40/x
  3. Step 3: Cross multiply
    64,215.60x = 96,323.40 × 44,516.40
  4. Step 4: Simplify right side
    64,215.60x = 4,287,971,003.76
  5. Step 5: Solve for x
    x = 4,287,971,003.76/64,215.60
  6. Step 6: Final answer
    x = 66,774.60

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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.