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Finding the Fourth Proportional to 28,649.34, 42,973.34 and 16,877.77

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Solution

The fourth proportional to 28,649.34, 42,973.34 and 16,877.77 is: 25,316.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,649.34 : 42,973.34 = 16,877.77 : x
  2. Step 2: Convert to fraction form
    28,649.34/42,973.34 = 16,877.77/x
  3. Step 3: Cross multiply
    28,649.34x = 42,973.34 × 16,877.77
  4. Step 4: Simplify right side
    28,649.34x = 725,293,956.83
  5. Step 5: Solve for x
    x = 725,293,956.83/28,649.34
  6. Step 6: Final answer
    x = 25,316.25

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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.