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Finding the Fourth Proportional to 72,905.96, 109,358.95 and 17,501.96

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Solution

The fourth proportional to 72,905.96, 109,358.95 and 17,501.96 is: 26,252.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,905.96 : 109,358.95 = 17,501.96 : x
  2. Step 2: Convert to fraction form
    72,905.96/109,358.95 = 17,501.96/x
  3. Step 3: Cross multiply
    72,905.96x = 109,358.95 × 17,501.96
  4. Step 4: Simplify right side
    72,905.96x = 1,913,995,968.54
  5. Step 5: Solve for x
    x = 1,913,995,968.54/72,905.96
  6. Step 6: Final answer
    x = 26,252.94

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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.