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Finding the Fourth Proportional to 73,017.96, 109,526.94 and 28,665.60

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Solution

The fourth proportional to 73,017.96, 109,526.94 and 28,665.60 is: 42,998.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,017.96 : 109,526.94 = 28,665.60 : x
  2. Step 2: Convert to fraction form
    73,017.96/109,526.94 = 28,665.60/x
  3. Step 3: Cross multiply
    73,017.96x = 109,526.94 × 28,665.60
  4. Step 4: Simplify right side
    73,017.96x = 3,139,655,451.26
  5. Step 5: Solve for x
    x = 3,139,655,451.26/73,017.96
  6. Step 6: Final answer
    x = 42,998.40

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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.