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Finding the Fourth Proportional to 47,239, 65,189.12 and 26,018.28

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Solution

The fourth proportional to 47,239, 65,189.12 and 26,018.28 is: 35,904.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,239 : 65,189.12 = 26,018.28 : x
  2. Step 2: Convert to fraction form
    47,239/65,189.12 = 26,018.28/x
  3. Step 3: Cross multiply
    47,239x = 65,189.12 × 26,018.28
  4. Step 4: Simplify right side
    47,239x = 1,696,108,777.11
  5. Step 5: Solve for x
    x = 1,696,108,777.11/47,239
  6. Step 6: Final answer
    x = 35,904.84

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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.