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Finding the Fourth Proportional to 48,006.30, 72,009.45 and 43,340.70

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Solution

The fourth proportional to 48,006.30, 72,009.45 and 43,340.70 is: 65,011.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,006.30 : 72,009.45 = 43,340.70 : x
  2. Step 2: Convert to fraction form
    48,006.30/72,009.45 = 43,340.70/x
  3. Step 3: Cross multiply
    48,006.30x = 72,009.45 × 43,340.70
  4. Step 4: Simplify right side
    48,006.30x = 3,120,939,969.62
  5. Step 5: Solve for x
    x = 3,120,939,969.62/48,006.30
  6. Step 6: Final answer
    x = 65,011.05

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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.