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Finding the Fourth Proportional to 57,312.78, 85,969.73 and 17,332.08

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Solution

The fourth proportional to 57,312.78, 85,969.73 and 17,332.08 is: 25,998.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,312.78 : 85,969.73 = 17,332.08 : x
  2. Step 2: Convert to fraction form
    57,312.78/85,969.73 = 17,332.08/x
  3. Step 3: Cross multiply
    57,312.78x = 85,969.73 × 17,332.08
  4. Step 4: Simplify right side
    57,312.78x = 1,490,033,721.43
  5. Step 5: Solve for x
    x = 1,490,033,721.43/57,312.78
  6. Step 6: Final answer
    x = 25,998.28

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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.