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Finding the Fourth Proportional to 19,349.98, 26,703.26 and 10,853.99

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Solution

The fourth proportional to 19,349.98, 26,703.26 and 10,853.99 is: 14,978.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,349.98 : 26,703.26 = 10,853.99 : x
  2. Step 2: Convert to fraction form
    19,349.98/26,703.26 = 10,853.99/x
  3. Step 3: Cross multiply
    19,349.98x = 26,703.26 × 10,853.99
  4. Step 4: Simplify right side
    19,349.98x = 289,836,810.63
  5. Step 5: Solve for x
    x = 289,836,810.63/19,349.98
  6. Step 6: Final answer
    x = 14,978.66

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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.