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Finding the Fourth Proportional to 48,406.70, 72,610.05 and 47,110.70

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Solution

The fourth proportional to 48,406.70, 72,610.05 and 47,110.70 is: 70,666.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,406.70 : 72,610.05 = 47,110.70 : x
  2. Step 2: Convert to fraction form
    48,406.70/72,610.05 = 47,110.70/x
  3. Step 3: Cross multiply
    48,406.70x = 72,610.05 × 47,110.70
  4. Step 4: Simplify right side
    48,406.70x = 3,420,710,282.54
  5. Step 5: Solve for x
    x = 3,420,710,282.54/48,406.70
  6. Step 6: Final answer
    x = 70,666.05

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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.