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Finding the Fourth Proportional to 91,812.01, 126,702.84 and 51,528.84

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Solution

The fourth proportional to 91,812.01, 126,702.84 and 51,528.84 is: 71,111.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,812.01 : 126,702.84 = 51,528.84 : x
  2. Step 2: Convert to fraction form
    91,812.01/126,702.84 = 51,528.84/x
  3. Step 3: Cross multiply
    91,812.01x = 126,702.84 × 51,528.84
  4. Step 4: Simplify right side
    91,812.01x = 6,528,850,369.91
  5. Step 5: Solve for x
    x = 6,528,850,369.91/91,812.01
  6. Step 6: Final answer
    x = 71,111.07

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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.