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Finding the Fourth Proportional to 58,478, 87,717 and 14,702

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Solution

The fourth proportional to 58,478, 87,717 and 14,702 is: 22,053

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,478 : 87,717 = 14,702 : x
  2. Step 2: Convert to fraction form
    58,478/87,717 = 14,702/x
  3. Step 3: Cross multiply
    58,478x = 87,717 × 14,702
  4. Step 4: Simplify right side
    58,478x = 1,289,615,334
  5. Step 5: Solve for x
    x = 1,289,615,334/58,478
  6. Step 6: Final answer
    x = 22,053

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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.