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Finding the Fourth Proportional to 29,187.36, 40,278.60 and 17,256.60

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Solution

The fourth proportional to 29,187.36, 40,278.60 and 17,256.60 is: 23,814.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,187.36 : 40,278.60 = 17,256.60 : x
  2. Step 2: Convert to fraction form
    29,187.36/40,278.60 = 17,256.60/x
  3. Step 3: Cross multiply
    29,187.36x = 40,278.60 × 17,256.60
  4. Step 4: Simplify right side
    29,187.36x = 695,071,688.76
  5. Step 5: Solve for x
    x = 695,071,688.76/29,187.36
  6. Step 6: Final answer
    x = 23,814.13

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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.