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Finding the Fourth Proportional to 70,619.72, 97,518.47 and 52,683.57

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Solution

The fourth proportional to 70,619.72, 97,518.47 and 52,683.57 is: 72,750.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,619.72 : 97,518.47 = 52,683.57 : x
  2. Step 2: Convert to fraction form
    70,619.72/97,518.47 = 52,683.57/x
  3. Step 3: Cross multiply
    70,619.72x = 97,518.47 × 52,683.57
  4. Step 4: Simplify right side
    70,619.72x = 5,137,620,877.12
  5. Step 5: Solve for x
    x = 5,137,620,877.12/70,619.72
  6. Step 6: Final answer
    x = 72,750.52

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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.