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Finding the Fourth Proportional to 74,659.10, 112,021.05 and 37,723.10

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Solution

The fourth proportional to 74,659.10, 112,021.05 and 37,723.10 is: 56,601.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,659.10 : 112,021.05 = 37,723.10 : x
  2. Step 2: Convert to fraction form
    74,659.10/112,021.05 = 37,723.10/x
  3. Step 3: Cross multiply
    74,659.10x = 112,021.05 × 37,723.10
  4. Step 4: Simplify right side
    74,659.10x = 4,225,781,271.26
  5. Step 5: Solve for x
    x = 4,225,781,271.26/74,659.10
  6. Step 6: Final answer
    x = 56,601.02

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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.