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Finding the Fourth Proportional to 33,312.21, 45,973.04 and 18,779.98

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Solution

The fourth proportional to 33,312.21, 45,973.04 and 18,779.98 is: 25,917.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,312.21 : 45,973.04 = 18,779.98 : x
  2. Step 2: Convert to fraction form
    33,312.21/45,973.04 = 18,779.98/x
  3. Step 3: Cross multiply
    33,312.21x = 45,973.04 × 18,779.98
  4. Step 4: Simplify right side
    33,312.21x = 863,372,678.26
  5. Step 5: Solve for x
    x = 863,372,678.26/33,312.21
  6. Step 6: Final answer
    x = 25,917.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.