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Finding the Fourth Proportional to 8,862.12, 13,277.48 and 8,335.30

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Solution

The fourth proportional to 8,862.12, 13,277.48 and 8,335.30 is: 12,488.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,862.12 : 13,277.48 = 8,335.30 : x
  2. Step 2: Convert to fraction form
    8,862.12/13,277.48 = 8,335.30/x
  3. Step 3: Cross multiply
    8,862.12x = 13,277.48 × 8,335.30
  4. Step 4: Simplify right side
    8,862.12x = 110,671,779.04
  5. Step 5: Solve for x
    x = 110,671,779.04/8,862.12
  6. Step 6: Final answer
    x = 12,488.18

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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.