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Finding the Fourth Proportional to 64,291.49, 96,459.92 and 28,749.50

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Solution

The fourth proportional to 64,291.49, 96,459.92 and 28,749.50 is: 43,134.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,291.49 : 96,459.92 = 28,749.50 : x
  2. Step 2: Convert to fraction form
    64,291.49/96,459.92 = 28,749.50/x
  3. Step 3: Cross multiply
    64,291.49x = 96,459.92 × 28,749.50
  4. Step 4: Simplify right side
    64,291.49x = 2,773,173,843.99
  5. Step 5: Solve for x
    x = 2,773,173,843.99/64,291.49
  6. Step 6: Final answer
    x = 43,134.39

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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.