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Finding the Fourth Proportional to 61,098.32, 91,630.20 and 19,534.16

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Solution

The fourth proportional to 61,098.32, 91,630.20 and 19,534.16 is: 29,295.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,098.32 : 91,630.20 = 19,534.16 : x
  2. Step 2: Convert to fraction form
    61,098.32/91,630.20 = 19,534.16/x
  3. Step 3: Cross multiply
    61,098.32x = 91,630.20 × 19,534.16
  4. Step 4: Simplify right side
    61,098.32x = 1,789,918,987.63
  5. Step 5: Solve for x
    x = 1,789,918,987.63/61,098.32
  6. Step 6: Final answer
    x = 29,295.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.