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Finding the Fourth Proportional to 14,394.39, 21,598.07 and 7,810.71

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Solution

The fourth proportional to 14,394.39, 21,598.07 and 7,810.71 is: 11,719.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,394.39 : 21,598.07 = 7,810.71 : x
  2. Step 2: Convert to fraction form
    14,394.39/21,598.07 = 7,810.71/x
  3. Step 3: Cross multiply
    14,394.39x = 21,598.07 × 7,810.71
  4. Step 4: Simplify right side
    14,394.39x = 168,696,222.28
  5. Step 5: Solve for x
    x = 168,696,222.28/14,394.39
  6. Step 6: Final answer
    x = 11,719.58

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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.