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Finding the Fourth Proportional to 91,036, 125,628.42 and 50,753.08

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Solution

The fourth proportional to 91,036, 125,628.42 and 50,753.08 is: 70,038.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,036 : 125,628.42 = 50,753.08 : x
  2. Step 2: Convert to fraction form
    91,036/125,628.42 = 50,753.08/x
  3. Step 3: Cross multiply
    91,036x = 125,628.42 × 50,753.08
  4. Step 4: Simplify right side
    91,036x = 6,376,029,250.53
  5. Step 5: Solve for x
    x = 6,376,029,250.53/91,036
  6. Step 6: Final answer
    x = 70,038.55

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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.