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Finding the Fourth Proportional to 25,110.80, 37,666.04 and 6,642.80

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Solution

The fourth proportional to 25,110.80, 37,666.04 and 6,642.80 is: 9,964.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,110.80 : 37,666.04 = 6,642.80 : x
  2. Step 2: Convert to fraction form
    25,110.80/37,666.04 = 6,642.80/x
  3. Step 3: Cross multiply
    25,110.80x = 37,666.04 × 6,642.80
  4. Step 4: Simplify right side
    25,110.80x = 250,207,970.51
  5. Step 5: Solve for x
    x = 250,207,970.51/25,110.80
  6. Step 6: Final answer
    x = 9,964.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.