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Finding the Fourth Proportional to 38,762.88, 58,142.79 and 11,060.88

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Solution

The fourth proportional to 38,762.88, 58,142.79 and 11,060.88 is: 16,590.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,762.88 : 58,142.79 = 11,060.88 : x
  2. Step 2: Convert to fraction form
    38,762.88/58,142.79 = 11,060.88/x
  3. Step 3: Cross multiply
    38,762.88x = 58,142.79 × 11,060.88
  4. Step 4: Simplify right side
    38,762.88x = 643,110,423.06
  5. Step 5: Solve for x
    x = 643,110,423.06/38,762.88
  6. Step 6: Final answer
    x = 16,590.88

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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.