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Finding the Fourth Proportional to 85,013.40, 127,568.70 and 32,460.60

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Solution

The fourth proportional to 85,013.40, 127,568.70 and 32,460.60 is: 48,709.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,013.40 : 127,568.70 = 32,460.60 : x
  2. Step 2: Convert to fraction form
    85,013.40/127,568.70 = 32,460.60/x
  3. Step 3: Cross multiply
    85,013.40x = 127,568.70 × 32,460.60
  4. Step 4: Simplify right side
    85,013.40x = 4,140,956,543.22
  5. Step 5: Solve for x
    x = 4,140,956,543.22/85,013.40
  6. Step 6: Final answer
    x = 48,709.46

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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.