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Finding the Fourth Proportional to 64,412.40, 96,511.76 and 45,599.52

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Solution

The fourth proportional to 64,412.40, 96,511.76 and 45,599.52 is: 68,323.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,412.40 : 96,511.76 = 45,599.52 : x
  2. Step 2: Convert to fraction form
    64,412.40/96,511.76 = 45,599.52/x
  3. Step 3: Cross multiply
    64,412.40x = 96,511.76 × 45,599.52
  4. Step 4: Simplify right side
    64,412.40x = 4,400,889,930.36
  5. Step 5: Solve for x
    x = 4,400,889,930.36/64,412.40
  6. Step 6: Final answer
    x = 68,323.64

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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.