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Finding the Fourth Proportional to 51,059.58, 70,468.55 and 28,703.58

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Solution

The fourth proportional to 51,059.58, 70,468.55 and 28,703.58 is: 39,614.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,059.58 : 70,468.55 = 28,703.58 : x
  2. Step 2: Convert to fraction form
    51,059.58/70,468.55 = 28,703.58/x
  3. Step 3: Cross multiply
    51,059.58x = 70,468.55 × 28,703.58
  4. Step 4: Simplify right side
    51,059.58x = 2,022,699,662.41
  5. Step 5: Solve for x
    x = 2,022,699,662.41/51,059.58
  6. Step 6: Final answer
    x = 39,614.50

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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.