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Finding the Fourth Proportional to 70,498.19, 97,290.53 and 40,285.84

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Solution

The fourth proportional to 70,498.19, 97,290.53 and 40,285.84 is: 55,596.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,498.19 : 97,290.53 = 40,285.84 : x
  2. Step 2: Convert to fraction form
    70,498.19/97,290.53 = 40,285.84/x
  3. Step 3: Cross multiply
    70,498.19x = 97,290.53 × 40,285.84
  4. Step 4: Simplify right side
    70,498.19x = 3,919,430,725.10
  5. Step 5: Solve for x
    x = 3,919,430,725.10/70,498.19
  6. Step 6: Final answer
    x = 55,596.19

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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.