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Finding the Fourth Proportional to 30,402.68, 41,959.42 and 17,653.07

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Solution

The fourth proportional to 30,402.68, 41,959.42 and 17,653.07 is: 24,363.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,402.68 : 41,959.42 = 17,653.07 : x
  2. Step 2: Convert to fraction form
    30,402.68/41,959.42 = 17,653.07/x
  3. Step 3: Cross multiply
    30,402.68x = 41,959.42 × 17,653.07
  4. Step 4: Simplify right side
    30,402.68x = 740,712,639.19
  5. Step 5: Solve for x
    x = 740,712,639.19/30,402.68
  6. Step 6: Final answer
    x = 24,363.40

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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.