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Finding the Fourth Proportional to 56,090.88, 77,377.68 and 36,698.40

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Solution

The fourth proportional to 56,090.88, 77,377.68 and 36,698.40 is: 50,625.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,090.88 : 77,377.68 = 36,698.40 : x
  2. Step 2: Convert to fraction form
    56,090.88/77,377.68 = 36,698.40/x
  3. Step 3: Cross multiply
    56,090.88x = 77,377.68 × 36,698.40
  4. Step 4: Simplify right side
    56,090.88x = 2,839,637,051.71
  5. Step 5: Solve for x
    x = 2,839,637,051.71/56,090.88
  6. Step 6: Final answer
    x = 50,625.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.