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Finding the Fourth Proportional to 56,770.34, 77,775.71 and 54,642.06

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Solution

The fourth proportional to 56,770.34, 77,775.71 and 54,642.06 is: 74,859.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,770.34 : 77,775.71 = 54,642.06 : x
  2. Step 2: Convert to fraction form
    56,770.34/77,775.71 = 54,642.06/x
  3. Step 3: Cross multiply
    56,770.34x = 77,775.71 × 54,642.06
  4. Step 4: Simplify right side
    56,770.34x = 4,249,824,739.15
  5. Step 5: Solve for x
    x = 4,249,824,739.15/56,770.34
  6. Step 6: Final answer
    x = 74,859.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.