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Finding the Fourth Proportional to 56,456.74, 77,888.06 and 32,578.79

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Solution

The fourth proportional to 56,456.74, 77,888.06 and 32,578.79 is: 44,945.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,456.74 : 77,888.06 = 32,578.79 : x
  2. Step 2: Convert to fraction form
    56,456.74/77,888.06 = 32,578.79/x
  3. Step 3: Cross multiply
    56,456.74x = 77,888.06 × 32,578.79
  4. Step 4: Simplify right side
    56,456.74x = 2,537,499,026.41
  5. Step 5: Solve for x
    x = 2,537,499,026.41/56,456.74
  6. Step 6: Final answer
    x = 44,945.90

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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.