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Finding the Fourth Proportional to 17,750.66, 24,510.65 and 15,858.90

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Solution

The fourth proportional to 17,750.66, 24,510.65 and 15,858.90 is: 21,898.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,750.66 : 24,510.65 = 15,858.90 : x
  2. Step 2: Convert to fraction form
    17,750.66/24,510.65 = 15,858.90/x
  3. Step 3: Cross multiply
    17,750.66x = 24,510.65 × 15,858.90
  4. Step 4: Simplify right side
    17,750.66x = 388,711,867.99
  5. Step 5: Solve for x
    x = 388,711,867.99/17,750.66
  6. Step 6: Final answer
    x = 21,898.45

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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.