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Finding the Fourth Proportional to 9,765.83, 14,690.31 and 8,852.40

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Solution

The fourth proportional to 9,765.83, 14,690.31 and 8,852.40 is: 13,316.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,765.83 : 14,690.31 = 8,852.40 : x
  2. Step 2: Convert to fraction form
    9,765.83/14,690.31 = 8,852.40/x
  3. Step 3: Cross multiply
    9,765.83x = 14,690.31 × 8,852.40
  4. Step 4: Simplify right side
    9,765.83x = 130,044,452.45
  5. Step 5: Solve for x
    x = 130,044,452.45/9,765.83
  6. Step 6: Final answer
    x = 13,316.28

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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.