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Finding the Fourth Proportional to 56,391.90, 77,820.80 and 32,518.23

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Solution

The fourth proportional to 56,391.90, 77,820.80 and 32,518.23 is: 44,875.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,391.90 : 77,820.80 = 32,518.23 : x
  2. Step 2: Convert to fraction form
    56,391.90/77,820.80 = 32,518.23/x
  3. Step 3: Cross multiply
    56,391.90x = 77,820.80 × 32,518.23
  4. Step 4: Simplify right side
    56,391.90x = 2,530,594,510.59
  5. Step 5: Solve for x
    x = 2,530,594,510.59/56,391.90
  6. Step 6: Final answer
    x = 44,875.14

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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.