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Finding the Fourth Proportional to 83,999.58, 125,984.79 and 28,595.58

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Solution

The fourth proportional to 83,999.58, 125,984.79 and 28,595.58 is: 42,888.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,999.58 : 125,984.79 = 28,595.58 : x
  2. Step 2: Convert to fraction form
    83,999.58/125,984.79 = 28,595.58/x
  3. Step 3: Cross multiply
    83,999.58x = 125,984.79 × 28,595.58
  4. Step 4: Simplify right side
    83,999.58x = 3,602,608,141.23
  5. Step 5: Solve for x
    x = 3,602,608,141.23/83,999.58
  6. Step 6: Final answer
    x = 42,888.41

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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.