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Finding the Fourth Proportional to 47,309.70, 65,288.16 and 26,087.70

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Solution

The fourth proportional to 47,309.70, 65,288.16 and 26,087.70 is: 36,001.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,309.70 : 65,288.16 = 26,087.70 : x
  2. Step 2: Convert to fraction form
    47,309.70/65,288.16 = 26,087.70/x
  3. Step 3: Cross multiply
    47,309.70x = 65,288.16 × 26,087.70
  4. Step 4: Simplify right side
    47,309.70x = 1,703,217,931.63
  5. Step 5: Solve for x
    x = 1,703,217,931.63/47,309.70
  6. Step 6: Final answer
    x = 36,001.45

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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.