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Finding the Fourth Proportional to 52,117.80, 78,168.60 and 14,674.20

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Solution

The fourth proportional to 52,117.80, 78,168.60 and 14,674.20 is: 22,009.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,117.80 : 78,168.60 = 14,674.20 : x
  2. Step 2: Convert to fraction form
    52,117.80/78,168.60 = 14,674.20/x
  3. Step 3: Cross multiply
    52,117.80x = 78,168.60 × 14,674.20
  4. Step 4: Simplify right side
    52,117.80x = 1,147,061,670.12
  5. Step 5: Solve for x
    x = 1,147,061,670.12/52,117.80
  6. Step 6: Final answer
    x = 22,009.02

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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.