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Finding the Fourth Proportional to 48,572.70, 72,852.93 and 13,515.06

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Solution

The fourth proportional to 48,572.70, 72,852.93 and 13,515.06 is: 20,270.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,572.70 : 72,852.93 = 13,515.06 : x
  2. Step 2: Convert to fraction form
    48,572.70/72,852.93 = 13,515.06/x
  3. Step 3: Cross multiply
    48,572.70x = 72,852.93 × 13,515.06
  4. Step 4: Simplify right side
    48,572.70x = 984,611,720.13
  5. Step 5: Solve for x
    x = 984,611,720.13/48,572.70
  6. Step 6: Final answer
    x = 20,270.89

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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.