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Finding the Fourth Proportional to 9,445.79, 14,141.95 and 7,851.71

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Solution

The fourth proportional to 9,445.79, 14,141.95 and 7,851.71 is: 11,755.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,445.79 : 14,141.95 = 7,851.71 : x
  2. Step 2: Convert to fraction form
    9,445.79/14,141.95 = 7,851.71/x
  3. Step 3: Cross multiply
    9,445.79x = 14,141.95 × 7,851.71
  4. Step 4: Simplify right side
    9,445.79x = 111,038,490.23
  5. Step 5: Solve for x
    x = 111,038,490.23/9,445.79
  6. Step 6: Final answer
    x = 11,755.34

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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.