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Finding the Fourth Proportional to 40,547.35, 60,820.84 and 10,965.17

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Solution

The fourth proportional to 40,547.35, 60,820.84 and 10,965.17 is: 16,447.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,547.35 : 60,820.84 = 10,965.17 : x
  2. Step 2: Convert to fraction form
    40,547.35/60,820.84 = 10,965.17/x
  3. Step 3: Cross multiply
    40,547.35x = 60,820.84 × 10,965.17
  4. Step 4: Simplify right side
    40,547.35x = 666,911,015.90
  5. Step 5: Solve for x
    x = 666,911,015.90/40,547.35
  6. Step 6: Final answer
    x = 16,447.71

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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.