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Finding the Fourth Proportional to 35,615.32, 53,421.78 and 16,904.32

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Solution

The fourth proportional to 35,615.32, 53,421.78 and 16,904.32 is: 25,355.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,615.32 : 53,421.78 = 16,904.32 : x
  2. Step 2: Convert to fraction form
    35,615.32/53,421.78 = 16,904.32/x
  3. Step 3: Cross multiply
    35,615.32x = 53,421.78 × 16,904.32
  4. Step 4: Simplify right side
    35,615.32x = 903,058,864.09
  5. Step 5: Solve for x
    x = 903,058,864.09/35,615.32
  6. Step 6: Final answer
    x = 25,355.91

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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.