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Finding the Fourth Proportional to 28,609.88, 39,484.06 and 16,037.06

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Solution

The fourth proportional to 28,609.88, 39,484.06 and 16,037.06 is: 22,132.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,609.88 : 39,484.06 = 16,037.06 : x
  2. Step 2: Convert to fraction form
    28,609.88/39,484.06 = 16,037.06/x
  3. Step 3: Cross multiply
    28,609.88x = 39,484.06 × 16,037.06
  4. Step 4: Simplify right side
    28,609.88x = 633,208,001.75
  5. Step 5: Solve for x
    x = 633,208,001.75/28,609.88
  6. Step 6: Final answer
    x = 22,132.50

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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.