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Finding the Fourth Proportional to 58,323, 87,497.46 and 21,387

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Solution

The fourth proportional to 58,323, 87,497.46 and 21,387 is: 32,085.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,323 : 87,497.46 = 21,387 : x
  2. Step 2: Convert to fraction form
    58,323/87,497.46 = 21,387/x
  3. Step 3: Cross multiply
    58,323x = 87,497.46 × 21,387
  4. Step 4: Simplify right side
    58,323x = 1,871,308,177.02
  5. Step 5: Solve for x
    x = 1,871,308,177.02/58,323
  6. Step 6: Final answer
    x = 32,085.25

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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.