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Finding the Fourth Proportional to 64,215.70, 96,323.55 and 48,663.70

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Solution

The fourth proportional to 64,215.70, 96,323.55 and 48,663.70 is: 72,995.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,215.70 : 96,323.55 = 48,663.70 : x
  2. Step 2: Convert to fraction form
    64,215.70/96,323.55 = 48,663.70/x
  3. Step 3: Cross multiply
    64,215.70x = 96,323.55 × 48,663.70
  4. Step 4: Simplify right side
    64,215.70x = 4,687,460,340.14
  5. Step 5: Solve for x
    x = 4,687,460,340.14/64,215.70
  6. Step 6: Final answer
    x = 72,995.55

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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.