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Finding the Fourth Proportional to 8,897.88, 13,360.70 and 8,503.52

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Solution

The fourth proportional to 8,897.88, 13,360.70 and 8,503.52 is: 12,768.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,897.88 : 13,360.70 = 8,503.52 : x
  2. Step 2: Convert to fraction form
    8,897.88/13,360.70 = 8,503.52/x
  3. Step 3: Cross multiply
    8,897.88x = 13,360.70 × 8,503.52
  4. Step 4: Simplify right side
    8,897.88x = 113,613,034.32
  5. Step 5: Solve for x
    x = 113,613,034.32/8,897.88
  6. Step 6: Final answer
    x = 12,768.55

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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.