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Finding the Fourth Proportional to 7,881.63, 10,876.32 and 4,296.51

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Solution

The fourth proportional to 7,881.63, 10,876.32 and 4,296.51 is: 5,929.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,881.63 : 10,876.32 = 4,296.51 : x
  2. Step 2: Convert to fraction form
    7,881.63/10,876.32 = 4,296.51/x
  3. Step 3: Cross multiply
    7,881.63x = 10,876.32 × 4,296.51
  4. Step 4: Simplify right side
    7,881.63x = 46,730,217.64
  5. Step 5: Solve for x
    x = 46,730,217.64/7,881.63
  6. Step 6: Final answer
    x = 5,929.00

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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.