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Finding the Fourth Proportional to 70,648.47, 97,520.49 and 46,782.90

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Solution

The fourth proportional to 70,648.47, 97,520.49 and 46,782.90 is: 64,577.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,648.47 : 97,520.49 = 46,782.90 : x
  2. Step 2: Convert to fraction form
    70,648.47/97,520.49 = 46,782.90/x
  3. Step 3: Cross multiply
    70,648.47x = 97,520.49 × 46,782.90
  4. Step 4: Simplify right side
    70,648.47x = 4,562,291,331.62
  5. Step 5: Solve for x
    x = 4,562,291,331.62/70,648.47
  6. Step 6: Final answer
    x = 64,577.36

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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.