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Finding the Fourth Proportional to 8,005.95, 12,068.98 and 7,470.74

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Solution

The fourth proportional to 8,005.95, 12,068.98 and 7,470.74 is: 11,262.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,005.95 : 12,068.98 = 7,470.74 : x
  2. Step 2: Convert to fraction form
    8,005.95/12,068.98 = 7,470.74/x
  3. Step 3: Cross multiply
    8,005.95x = 12,068.98 × 7,470.74
  4. Step 4: Simplify right side
    8,005.95x = 90,164,223.14
  5. Step 5: Solve for x
    x = 90,164,223.14/8,005.95
  6. Step 6: Final answer
    x = 11,262.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.