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Finding the Fourth Proportional to 71,589.64, 98,802.80 and 43,295.52

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Solution

The fourth proportional to 71,589.64, 98,802.80 and 43,295.52 is: 59,753.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,589.64 : 98,802.80 = 43,295.52 : x
  2. Step 2: Convert to fraction form
    71,589.64/98,802.80 = 43,295.52/x
  3. Step 3: Cross multiply
    71,589.64x = 98,802.80 × 43,295.52
  4. Step 4: Simplify right side
    71,589.64x = 4,277,718,603.46
  5. Step 5: Solve for x
    x = 4,277,718,603.46/71,589.64
  6. Step 6: Final answer
    x = 59,753.32

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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.