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Finding the Fourth Proportional to 70,585.51, 97,388.98 and 40,364.60

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Solution

The fourth proportional to 70,585.51, 97,388.98 and 40,364.60 is: 55,692.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,585.51 : 97,388.98 = 40,364.60 : x
  2. Step 2: Convert to fraction form
    70,585.51/97,388.98 = 40,364.60/x
  3. Step 3: Cross multiply
    70,585.51x = 97,388.98 × 40,364.60
  4. Step 4: Simplify right side
    70,585.51x = 3,931,067,222.11
  5. Step 5: Solve for x
    x = 3,931,067,222.11/70,585.51
  6. Step 6: Final answer
    x = 55,692.27

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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.