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Finding the Fourth Proportional to 56,602.85, 78,087.71 and 35,345.21

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Solution

The fourth proportional to 56,602.85, 78,087.71 and 35,345.21 is: 48,761.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,602.85 : 78,087.71 = 35,345.21 : x
  2. Step 2: Convert to fraction form
    56,602.85/78,087.71 = 35,345.21/x
  3. Step 3: Cross multiply
    56,602.85x = 78,087.71 × 35,345.21
  4. Step 4: Simplify right side
    56,602.85x = 2,760,026,331.64
  5. Step 5: Solve for x
    x = 2,760,026,331.64/56,602.85
  6. Step 6: Final answer
    x = 48,761.26

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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.