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Finding the Fourth Proportional to 19,701.66, 29,551.40 and 6,374.40

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Solution

The fourth proportional to 19,701.66, 29,551.40 and 6,374.40 is: 9,561.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,701.66 : 29,551.40 = 6,374.40 : x
  2. Step 2: Convert to fraction form
    19,701.66/29,551.40 = 6,374.40/x
  3. Step 3: Cross multiply
    19,701.66x = 29,551.40 × 6,374.40
  4. Step 4: Simplify right side
    19,701.66x = 188,372,444.16
  5. Step 5: Solve for x
    x = 188,372,444.16/19,701.66
  6. Step 6: Final answer
    x = 9,561.25

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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.