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Finding the Fourth Proportional to 48,878.70, 73,188.45 and 38,510.70

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Solution

The fourth proportional to 48,878.70, 73,188.45 and 38,510.70 is: 57,663.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,878.70 : 73,188.45 = 38,510.70 : x
  2. Step 2: Convert to fraction form
    48,878.70/73,188.45 = 38,510.70/x
  3. Step 3: Cross multiply
    48,878.70x = 73,188.45 × 38,510.70
  4. Step 4: Simplify right side
    48,878.70x = 2,818,538,441.42
  5. Step 5: Solve for x
    x = 2,818,538,441.42/48,878.70
  6. Step 6: Final answer
    x = 57,663.94

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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.