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Finding the Fourth Proportional to 25,345.30, 35,570.90 and 25,345.30

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Solution

The fourth proportional to 25,345.30, 35,570.90 and 25,345.30 is: 35,570.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,345.30 : 35,570.90 = 25,345.30 : x
  2. Step 2: Convert to fraction form
    25,345.30/35,570.90 = 25,345.30/x
  3. Step 3: Cross multiply
    25,345.30x = 35,570.90 × 25,345.30
  4. Step 4: Simplify right side
    25,345.30x = 901,555,131.77
  5. Step 5: Solve for x
    x = 901,555,131.77/25,345.30
  6. Step 6: Final answer
    x = 35,570.90

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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.