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Finding the Fourth Proportional to 72,462.32, 108,693.54 and 58,356.20

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Solution

The fourth proportional to 72,462.32, 108,693.54 and 58,356.20 is: 87,534.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,462.32 : 108,693.54 = 58,356.20 : x
  2. Step 2: Convert to fraction form
    72,462.32/108,693.54 = 58,356.20/x
  3. Step 3: Cross multiply
    72,462.32x = 108,693.54 × 58,356.20
  4. Step 4: Simplify right side
    72,462.32x = 6,342,941,958.95
  5. Step 5: Solve for x
    x = 6,342,941,958.95/72,462.32
  6. Step 6: Final answer
    x = 87,534.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.