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Finding the Fourth Proportional to 23,139.70, 32,356.70 and 23,139.70

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Solution

The fourth proportional to 23,139.70, 32,356.70 and 23,139.70 is: 32,356.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,139.70 : 32,356.70 = 23,139.70 : x
  2. Step 2: Convert to fraction form
    23,139.70/32,356.70 = 23,139.70/x
  3. Step 3: Cross multiply
    23,139.70x = 32,356.70 × 23,139.70
  4. Step 4: Simplify right side
    23,139.70x = 748,724,330.99
  5. Step 5: Solve for x
    x = 748,724,330.99/23,139.70
  6. Step 6: Final answer
    x = 32,356.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.