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Finding the Fourth Proportional to 64,125.47, 96,198.54 and 19,752.21

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Solution

The fourth proportional to 64,125.47, 96,198.54 and 19,752.21 is: 29,631.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,125.47 : 96,198.54 = 19,752.21 : x
  2. Step 2: Convert to fraction form
    64,125.47/96,198.54 = 19,752.21/x
  3. Step 3: Cross multiply
    64,125.47x = 96,198.54 × 19,752.21
  4. Step 4: Simplify right side
    64,125.47x = 1,900,133,763.77
  5. Step 5: Solve for x
    x = 1,900,133,763.77/64,125.47
  6. Step 6: Final answer
    x = 29,631.50

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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.