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Finding the Fourth Proportional to 58,266, 87,399 and 14,490

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Solution

The fourth proportional to 58,266, 87,399 and 14,490 is: 21,735

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,266 : 87,399 = 14,490 : x
  2. Step 2: Convert to fraction form
    58,266/87,399 = 14,490/x
  3. Step 3: Cross multiply
    58,266x = 87,399 × 14,490
  4. Step 4: Simplify right side
    58,266x = 1,266,411,510
  5. Step 5: Solve for x
    x = 1,266,411,510/58,266
  6. Step 6: Final answer
    x = 21,735

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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.