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Finding the Fourth Proportional to 72,904.46, 109,356.69 and 17,500.46

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Solution

The fourth proportional to 72,904.46, 109,356.69 and 17,500.46 is: 26,250.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,904.46 : 109,356.69 = 17,500.46 : x
  2. Step 2: Convert to fraction form
    72,904.46/109,356.69 = 17,500.46/x
  3. Step 3: Cross multiply
    72,904.46x = 109,356.69 × 17,500.46
  4. Step 4: Simplify right side
    72,904.46x = 1,913,792,379.08
  5. Step 5: Solve for x
    x = 1,913,792,379.08/72,904.46
  6. Step 6: Final answer
    x = 26,250.69

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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.