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Finding the Fourth Proportional to 51,572.68, 77,285.98 and 21,960.68

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Solution

The fourth proportional to 51,572.68, 77,285.98 and 21,960.68 is: 32,909.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,572.68 : 77,285.98 = 21,960.68 : x
  2. Step 2: Convert to fraction form
    51,572.68/77,285.98 = 21,960.68/x
  3. Step 3: Cross multiply
    51,572.68x = 77,285.98 × 21,960.68
  4. Step 4: Simplify right side
    51,572.68x = 1,697,252,675.27
  5. Step 5: Solve for x
    x = 1,697,252,675.27/51,572.68
  6. Step 6: Final answer
    x = 32,909.92

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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.