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Finding the Fourth Proportional to 40,802.40, 61,202.16 and 16,178.40

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Solution

The fourth proportional to 40,802.40, 61,202.16 and 16,178.40 is: 24,267.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,802.40 : 61,202.16 = 16,178.40 : x
  2. Step 2: Convert to fraction form
    40,802.40/61,202.16 = 16,178.40/x
  3. Step 3: Cross multiply
    40,802.40x = 61,202.16 × 16,178.40
  4. Step 4: Simplify right side
    40,802.40x = 990,153,025.34
  5. Step 5: Solve for x
    x = 990,153,025.34/40,802.40
  6. Step 6: Final answer
    x = 24,267.03

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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.