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Finding the Fourth Proportional to 17,807.48, 26,711.04 and 7,416.80

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Solution

The fourth proportional to 17,807.48, 26,711.04 and 7,416.80 is: 11,125.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,807.48 : 26,711.04 = 7,416.80 : x
  2. Step 2: Convert to fraction form
    17,807.48/26,711.04 = 7,416.80/x
  3. Step 3: Cross multiply
    17,807.48x = 26,711.04 × 7,416.80
  4. Step 4: Simplify right side
    17,807.48x = 198,110,441.47
  5. Step 5: Solve for x
    x = 198,110,441.47/17,807.48
  6. Step 6: Final answer
    x = 11,125.13

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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.