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Finding the Fourth Proportional to 14,775.75, 20,390.54 and 10,068.23

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Solution

The fourth proportional to 14,775.75, 20,390.54 and 10,068.23 is: 13,894.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,775.75 : 20,390.54 = 10,068.23 : x
  2. Step 2: Convert to fraction form
    14,775.75/20,390.54 = 10,068.23/x
  3. Step 3: Cross multiply
    14,775.75x = 20,390.54 × 10,068.23
  4. Step 4: Simplify right side
    14,775.75x = 205,296,647.18
  5. Step 5: Solve for x
    x = 205,296,647.18/14,775.75
  6. Step 6: Final answer
    x = 13,894.16

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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.