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Finding the Fourth Proportional to 19,968.68, 29,953.08 and 9,435.30

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Solution

The fourth proportional to 19,968.68, 29,953.08 and 9,435.30 is: 14,152.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,968.68 : 29,953.08 = 9,435.30 : x
  2. Step 2: Convert to fraction form
    19,968.68/29,953.08 = 9,435.30/x
  3. Step 3: Cross multiply
    19,968.68x = 29,953.08 × 9,435.30
  4. Step 4: Simplify right side
    19,968.68x = 282,616,295.72
  5. Step 5: Solve for x
    x = 282,616,295.72/19,968.68
  6. Step 6: Final answer
    x = 14,152.98

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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.