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Finding the Fourth Proportional to 36,665.80, 55,005.54 and 16,931.32

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Solution

The fourth proportional to 36,665.80, 55,005.54 and 16,931.32 is: 25,400.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,665.80 : 55,005.54 = 16,931.32 : x
  2. Step 2: Convert to fraction form
    36,665.80/55,005.54 = 16,931.32/x
  3. Step 3: Cross multiply
    36,665.80x = 55,005.54 × 16,931.32
  4. Step 4: Simplify right side
    36,665.80x = 931,316,399.51
  5. Step 5: Solve for x
    x = 931,316,399.51/36,665.80
  6. Step 6: Final answer
    x = 25,400.14

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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.