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Finding the Fourth Proportional to 58,687.85, 88,009.66 and 21,238.67

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Solution

The fourth proportional to 58,687.85, 88,009.66 and 21,238.67 is: 31,850.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,687.85 : 88,009.66 = 21,238.67 : x
  2. Step 2: Convert to fraction form
    58,687.85/88,009.66 = 21,238.67/x
  3. Step 3: Cross multiply
    58,687.85x = 88,009.66 × 21,238.67
  4. Step 4: Simplify right side
    58,687.85x = 1,869,208,019.36
  5. Step 5: Solve for x
    x = 1,869,208,019.36/58,687.85
  6. Step 6: Final answer
    x = 31,850.00

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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.