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Finding the Fourth Proportional to 38,597.13, 53,264.04 and 20,933.13

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Solution

The fourth proportional to 38,597.13, 53,264.04 and 20,933.13 is: 28,887.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,597.13 : 53,264.04 = 20,933.13 : x
  2. Step 2: Convert to fraction form
    38,597.13/53,264.04 = 20,933.13/x
  3. Step 3: Cross multiply
    38,597.13x = 53,264.04 × 20,933.13
  4. Step 4: Simplify right side
    38,597.13x = 1,114,982,702.66
  5. Step 5: Solve for x
    x = 1,114,982,702.66/38,597.13
  6. Step 6: Final answer
    x = 28,887.71

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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.