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Finding the Fourth Proportional to 29,657.90, 40,926.48 and 16,911.56

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Solution

The fourth proportional to 29,657.90, 40,926.48 and 16,911.56 is: 23,337.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,657.90 : 40,926.48 = 16,911.56 : x
  2. Step 2: Convert to fraction form
    29,657.90/40,926.48 = 16,911.56/x
  3. Step 3: Cross multiply
    29,657.90x = 40,926.48 × 16,911.56
  4. Step 4: Simplify right side
    29,657.90x = 692,130,622.11
  5. Step 5: Solve for x
    x = 692,130,622.11/29,657.90
  6. Step 6: Final answer
    x = 23,337.14

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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.