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Finding the Fourth Proportional to 32,865,692.91, 45,355,991.65 and 18,181,106.01

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Solution

The fourth proportional to 32,865,692.91, 45,355,991.65 and 18,181,106.01 is: 25,090,665.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,865,692.91 : 45,355,991.65 = 18,181,106.01 : x
  2. Step 2: Convert to fraction form
    32,865,692.91/45,355,991.65 = 18,181,106.01/x
  3. Step 3: Cross multiply
    32,865,692.91x = 45,355,991.65 × 18,181,106.01
  4. Step 4: Simplify right side
    32,865,692.91x = 824,622,092,331,872.12
  5. Step 5: Solve for x
    x = 824,622,092,331,872.12/32,865,692.91
  6. Step 6: Final answer
    x = 25,090,665.05

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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.