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Finding the Fourth Proportional to 58,003.40, 86,990.91 and 18,552.35

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Solution

The fourth proportional to 58,003.40, 86,990.91 and 18,552.35 is: 27,823.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,003.40 : 86,990.91 = 18,552.35 : x
  2. Step 2: Convert to fraction form
    58,003.40/86,990.91 = 18,552.35/x
  3. Step 3: Cross multiply
    58,003.40x = 86,990.91 × 18,552.35
  4. Step 4: Simplify right side
    58,003.40x = 1,613,885,374.18
  5. Step 5: Solve for x
    x = 1,613,885,374.18/58,003.40
  6. Step 6: Final answer
    x = 27,823.98

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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.