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Finding the Fourth Proportional to 23,065, 34,572.90 and 9,918.40

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Solution

The fourth proportional to 23,065, 34,572.90 and 9,918.40 is: 14,867.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,065 : 34,572.90 = 9,918.40 : x
  2. Step 2: Convert to fraction form
    23,065/34,572.90 = 9,918.40/x
  3. Step 3: Cross multiply
    23,065x = 34,572.90 × 9,918.40
  4. Step 4: Simplify right side
    23,065x = 342,907,851.36
  5. Step 5: Solve for x
    x = 342,907,851.36/23,065
  6. Step 6: Final answer
    x = 14,867.02

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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.