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Finding the Fourth Proportional to 8,967.36, 12,374.98 and 4,988.50

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Solution

The fourth proportional to 8,967.36, 12,374.98 and 4,988.50 is: 6,884.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,967.36 : 12,374.98 = 4,988.50 : x
  2. Step 2: Convert to fraction form
    8,967.36/12,374.98 = 4,988.50/x
  3. Step 3: Cross multiply
    8,967.36x = 12,374.98 × 4,988.50
  4. Step 4: Simplify right side
    8,967.36x = 61,732,587.73
  5. Step 5: Solve for x
    x = 61,732,587.73/8,967.36
  6. Step 6: Final answer
    x = 6,884.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.