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Finding the Fourth Proportional to 48,270.36, 72,432.72 and 37,710.78

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Solution

The fourth proportional to 48,270.36, 72,432.72 and 37,710.78 is: 56,587.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,270.36 : 72,432.72 = 37,710.78 : x
  2. Step 2: Convert to fraction form
    48,270.36/72,432.72 = 37,710.78/x
  3. Step 3: Cross multiply
    48,270.36x = 72,432.72 × 37,710.78
  4. Step 4: Simplify right side
    48,270.36x = 2,731,494,368.72
  5. Step 5: Solve for x
    x = 2,731,494,368.72/48,270.36
  6. Step 6: Final answer
    x = 56,587.40

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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.