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Finding the Fourth Proportional to 22,657.62, 31,266.87 and 12,585.81

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Solution

The fourth proportional to 22,657.62, 31,266.87 and 12,585.81 is: 17,368.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,657.62 : 31,266.87 = 12,585.81 : x
  2. Step 2: Convert to fraction form
    22,657.62/31,266.87 = 12,585.81/x
  3. Step 3: Cross multiply
    22,657.62x = 31,266.87 × 12,585.81
  4. Step 4: Simplify right side
    22,657.62x = 393,518,885.11
  5. Step 5: Solve for x
    x = 393,518,885.11/22,657.62
  6. Step 6: Final answer
    x = 17,368.06

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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.