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Finding the Fourth Proportional to 71,094.90, 98,115.64 and 39,264.32

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Solution

The fourth proportional to 71,094.90, 98,115.64 and 39,264.32 is: 54,187.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,094.90 : 98,115.64 = 39,264.32 : x
  2. Step 2: Convert to fraction form
    71,094.90/98,115.64 = 39,264.32/x
  3. Step 3: Cross multiply
    71,094.90x = 98,115.64 × 39,264.32
  4. Step 4: Simplify right side
    71,094.90x = 3,852,443,885.96
  5. Step 5: Solve for x
    x = 3,852,443,885.96/71,094.90
  6. Step 6: Final answer
    x = 54,187.35

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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.