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Finding the Fourth Proportional to 56,547.20, 84,820.80 and 25,443.20

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Solution

The fourth proportional to 56,547.20, 84,820.80 and 25,443.20 is: 38,164.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,547.20 : 84,820.80 = 25,443.20 : x
  2. Step 2: Convert to fraction form
    56,547.20/84,820.80 = 25,443.20/x
  3. Step 3: Cross multiply
    56,547.20x = 84,820.80 × 25,443.20
  4. Step 4: Simplify right side
    56,547.20x = 2,158,112,578.56
  5. Step 5: Solve for x
    x = 2,158,112,578.56/56,547.20
  6. Step 6: Final answer
    x = 38,164.80

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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.