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Finding the Fourth Proportional to 9,851.79, 14,780.70 and 5,907.42

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Solution

The fourth proportional to 9,851.79, 14,780.70 and 5,907.42 is: 8,862.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,851.79 : 14,780.70 = 5,907.42 : x
  2. Step 2: Convert to fraction form
    9,851.79/14,780.70 = 5,907.42/x
  3. Step 3: Cross multiply
    9,851.79x = 14,780.70 × 5,907.42
  4. Step 4: Simplify right side
    9,851.79x = 87,315,802.79
  5. Step 5: Solve for x
    x = 87,315,802.79/9,851.79
  6. Step 6: Final answer
    x = 8,862.94

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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.