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Finding the Fourth Proportional to 58,125.80, 87,015.90 and 38,426.60

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Solution

The fourth proportional to 58,125.80, 87,015.90 and 38,426.60 is: 57,525.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,125.80 : 87,015.90 = 38,426.60 : x
  2. Step 2: Convert to fraction form
    58,125.80/87,015.90 = 38,426.60/x
  3. Step 3: Cross multiply
    58,125.80x = 87,015.90 × 38,426.60
  4. Step 4: Simplify right side
    58,125.80x = 3,343,725,182.94
  5. Step 5: Solve for x
    x = 3,343,725,182.94/58,125.80
  6. Step 6: Final answer
    x = 57,525.66

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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.