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Finding the Fourth Proportional to 43,406.80, 65,110.22 and 15,698.32

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Solution

The fourth proportional to 43,406.80, 65,110.22 and 15,698.32 is: 23,547.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,406.80 : 65,110.22 = 15,698.32 : x
  2. Step 2: Convert to fraction form
    43,406.80/65,110.22 = 15,698.32/x
  3. Step 3: Cross multiply
    43,406.80x = 65,110.22 × 15,698.32
  4. Step 4: Simplify right side
    43,406.80x = 1,022,121,068.83
  5. Step 5: Solve for x
    x = 1,022,121,068.83/43,406.80
  6. Step 6: Final answer
    x = 23,547.49

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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.