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Finding the Fourth Proportional to 74,047.20, 110,973.60 and 29,637.60

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Solution

The fourth proportional to 74,047.20, 110,973.60 and 29,637.60 is: 44,417.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,047.20 : 110,973.60 = 29,637.60 : x
  2. Step 2: Convert to fraction form
    74,047.20/110,973.60 = 29,637.60/x
  3. Step 3: Cross multiply
    74,047.20x = 110,973.60 × 29,637.60
  4. Step 4: Simplify right side
    74,047.20x = 3,288,991,167.36
  5. Step 5: Solve for x
    x = 3,288,991,167.36/74,047.20
  6. Step 6: Final answer
    x = 44,417.50

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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.