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Finding the Fourth Proportional to 70,312.48, 97,033.74 and 40,097.44

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Solution

The fourth proportional to 70,312.48, 97,033.74 and 40,097.44 is: 55,335.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,312.48 : 97,033.74 = 40,097.44 : x
  2. Step 2: Convert to fraction form
    70,312.48/97,033.74 = 40,097.44/x
  3. Step 3: Cross multiply
    70,312.48x = 97,033.74 × 40,097.44
  4. Step 4: Simplify right side
    70,312.48x = 3,890,804,567.63
  5. Step 5: Solve for x
    x = 3,890,804,567.63/70,312.48
  6. Step 6: Final answer
    x = 55,335.90

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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.