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Finding the Fourth Proportional to 25,698.90, 36,030.30 and 25,698.90

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Solution

The fourth proportional to 25,698.90, 36,030.30 and 25,698.90 is: 36,030.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,698.90 : 36,030.30 = 25,698.90 : x
  2. Step 2: Convert to fraction form
    25,698.90/36,030.30 = 25,698.90/x
  3. Step 3: Cross multiply
    25,698.90x = 36,030.30 × 25,698.90
  4. Step 4: Simplify right side
    25,698.90x = 925,939,076.67
  5. Step 5: Solve for x
    x = 925,939,076.67/25,698.90
  6. Step 6: Final answer
    x = 36,030.30

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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.