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Finding the Fourth Proportional to 32,703.80, 45,130.60 and 18,363.96

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Solution

The fourth proportional to 32,703.80, 45,130.60 and 18,363.96 is: 25,341.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,703.80 : 45,130.60 = 18,363.96 : x
  2. Step 2: Convert to fraction form
    32,703.80/45,130.60 = 18,363.96/x
  3. Step 3: Cross multiply
    32,703.80x = 45,130.60 × 18,363.96
  4. Step 4: Simplify right side
    32,703.80x = 828,776,533.18
  5. Step 5: Solve for x
    x = 828,776,533.18/32,703.80
  6. Step 6: Final answer
    x = 25,341.90

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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.