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Finding the Fourth Proportional to 56,461.44, 77,920.32 and 32,592.48

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Solution

The fourth proportional to 56,461.44, 77,920.32 and 32,592.48 is: 44,979.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,461.44 : 77,920.32 = 32,592.48 : x
  2. Step 2: Convert to fraction form
    56,461.44/77,920.32 = 32,592.48/x
  3. Step 3: Cross multiply
    56,461.44x = 77,920.32 × 32,592.48
  4. Step 4: Simplify right side
    56,461.44x = 2,539,616,471.19
  5. Step 5: Solve for x
    x = 2,539,616,471.19/56,461.44
  6. Step 6: Final answer
    x = 44,979.66

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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.