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Finding the Fourth Proportional to 19,999.77, 27,602.35 and 19,342.60

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Solution

The fourth proportional to 19,999.77, 27,602.35 and 19,342.60 is: 26,695.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,999.77 : 27,602.35 = 19,342.60 : x
  2. Step 2: Convert to fraction form
    19,999.77/27,602.35 = 19,342.60/x
  3. Step 3: Cross multiply
    19,999.77x = 27,602.35 × 19,342.60
  4. Step 4: Simplify right side
    19,999.77x = 533,901,215.11
  5. Step 5: Solve for x
    x = 533,901,215.11/19,999.77
  6. Step 6: Final answer
    x = 26,695.37

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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.