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Finding the Fourth Proportional to 29,416.50, 40,595.02 and 15,987.77

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Solution

The fourth proportional to 29,416.50, 40,595.02 and 15,987.77 is: 22,063.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,416.50 : 40,595.02 = 15,987.77 : x
  2. Step 2: Convert to fraction form
    29,416.50/40,595.02 = 15,987.77/x
  3. Step 3: Cross multiply
    29,416.50x = 40,595.02 × 15,987.77
  4. Step 4: Simplify right side
    29,416.50x = 649,023,842.91
  5. Step 5: Solve for x
    x = 649,023,842.91/29,416.50
  6. Step 6: Final answer
    x = 22,063.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.