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Finding the Fourth Proportional to 35,792.40, 53,712.90 and 19,997.40

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Solution

The fourth proportional to 35,792.40, 53,712.90 and 19,997.40 is: 30,009.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,792.40 : 53,712.90 = 19,997.40 : x
  2. Step 2: Convert to fraction form
    35,792.40/53,712.90 = 19,997.40/x
  3. Step 3: Cross multiply
    35,792.40x = 53,712.90 × 19,997.40
  4. Step 4: Simplify right side
    35,792.40x = 1,074,118,346.46
  5. Step 5: Solve for x
    x = 1,074,118,346.46/35,792.40
  6. Step 6: Final answer
    x = 30,009.68

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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.