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Finding the Fourth Proportional to 71,352.95, 98,467.74 and 39,088.32

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Solution

The fourth proportional to 71,352.95, 98,467.74 and 39,088.32 is: 53,942.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,352.95 : 98,467.74 = 39,088.32 : x
  2. Step 2: Convert to fraction form
    71,352.95/98,467.74 = 39,088.32/x
  3. Step 3: Cross multiply
    71,352.95x = 98,467.74 × 39,088.32
  4. Step 4: Simplify right side
    71,352.95x = 3,848,938,628.52
  5. Step 5: Solve for x
    x = 3,848,938,628.52/71,352.95
  6. Step 6: Final answer
    x = 53,942.25

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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.