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Finding the Fourth Proportional to 58,365.76, 80,491.08 and 38,215.84

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Solution

The fourth proportional to 58,365.76, 80,491.08 and 38,215.84 is: 52,702.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,365.76 : 80,491.08 = 38,215.84 : x
  2. Step 2: Convert to fraction form
    58,365.76/80,491.08 = 38,215.84/x
  3. Step 3: Cross multiply
    58,365.76x = 80,491.08 × 38,215.84
  4. Step 4: Simplify right side
    58,365.76x = 3,076,034,234.71
  5. Step 5: Solve for x
    x = 3,076,034,234.71/58,365.76
  6. Step 6: Final answer
    x = 52,702.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.