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Finding the Fourth Proportional to 58,014.90, 86,979.78 and 18,549.27

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Solution

The fourth proportional to 58,014.90, 86,979.78 and 18,549.27 is: 27,810.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,014.90 : 86,979.78 = 18,549.27 : x
  2. Step 2: Convert to fraction form
    58,014.90/86,979.78 = 18,549.27/x
  3. Step 3: Cross multiply
    58,014.90x = 86,979.78 × 18,549.27
  4. Step 4: Simplify right side
    58,014.90x = 1,613,411,423.76
  5. Step 5: Solve for x
    x = 1,613,411,423.76/58,014.90
  6. Step 6: Final answer
    x = 27,810.29

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1.5x scale

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.