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Finding the Fourth Proportional to 72,901.80, 109,352.70 and 23,653.80

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Solution

The fourth proportional to 72,901.80, 109,352.70 and 23,653.80 is: 35,480.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,901.80 : 109,352.70 = 23,653.80 : x
  2. Step 2: Convert to fraction form
    72,901.80/109,352.70 = 23,653.80/x
  3. Step 3: Cross multiply
    72,901.80x = 109,352.70 × 23,653.80
  4. Step 4: Simplify right side
    72,901.80x = 2,586,606,895.26
  5. Step 5: Solve for x
    x = 2,586,606,895.26/72,901.80
  6. Step 6: Final answer
    x = 35,480.70

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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.