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Finding the Fourth Proportional to 71,643.76, 98,877.48 and 43,349.68

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Solution

The fourth proportional to 71,643.76, 98,877.48 and 43,349.68 is: 59,828.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,643.76 : 98,877.48 = 43,349.68 : x
  2. Step 2: Convert to fraction form
    71,643.76/98,877.48 = 43,349.68/x
  3. Step 3: Cross multiply
    71,643.76x = 98,877.48 × 43,349.68
  4. Step 4: Simplify right side
    71,643.76x = 4,286,307,117.21
  5. Step 5: Solve for x
    x = 4,286,307,117.21/71,643.76
  6. Step 6: Final answer
    x = 59,828.06

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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.