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Finding the Fourth Proportional to 69,803.32, 96,325.80 and 37,972.20

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Solution

The fourth proportional to 69,803.32, 96,325.80 and 37,972.20 is: 52,400.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,803.32 : 96,325.80 = 37,972.20 : x
  2. Step 2: Convert to fraction form
    69,803.32/96,325.80 = 37,972.20/x
  3. Step 3: Cross multiply
    69,803.32x = 96,325.80 × 37,972.20
  4. Step 4: Simplify right side
    69,803.32x = 3,657,702,542.76
  5. Step 5: Solve for x
    x = 3,657,702,542.76/69,803.32
  6. Step 6: Final answer
    x = 52,400.12

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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.