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Finding the Fourth Proportional to 91,323.57, 126,026.99 and 51,038.01

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Solution

The fourth proportional to 91,323.57, 126,026.99 and 51,038.01 is: 70,432.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,323.57 : 126,026.99 = 51,038.01 : x
  2. Step 2: Convert to fraction form
    91,323.57/126,026.99 = 51,038.01/x
  3. Step 3: Cross multiply
    91,323.57x = 126,026.99 × 51,038.01
  4. Step 4: Simplify right side
    91,323.57x = 6,432,166,520.70
  5. Step 5: Solve for x
    x = 6,432,166,520.70/91,323.57
  6. Step 6: Final answer
    x = 70,432.71

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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.