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Finding the Fourth Proportional to 65,572.34, 90,486.45 and 35,758.58

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Solution

The fourth proportional to 65,572.34, 90,486.45 and 35,758.58 is: 49,345.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,572.34 : 90,486.45 = 35,758.58 : x
  2. Step 2: Convert to fraction form
    65,572.34/90,486.45 = 35,758.58/x
  3. Step 3: Cross multiply
    65,572.34x = 90,486.45 × 35,758.58
  4. Step 4: Simplify right side
    65,572.34x = 3,235,666,961.24
  5. Step 5: Solve for x
    x = 3,235,666,961.24/65,572.34
  6. Step 6: Final answer
    x = 49,345.00

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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.