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Finding the Fourth Proportional to 62,686.72, 86,509.08 and 34,392.32

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Solution

The fourth proportional to 62,686.72, 86,509.08 and 34,392.32 is: 47,462.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,686.72 : 86,509.08 = 34,392.32 : x
  2. Step 2: Convert to fraction form
    62,686.72/86,509.08 = 34,392.32/x
  3. Step 3: Cross multiply
    62,686.72x = 86,509.08 × 34,392.32
  4. Step 4: Simplify right side
    62,686.72x = 2,975,247,962.27
  5. Step 5: Solve for x
    x = 2,975,247,962.27/62,686.72
  6. Step 6: Final answer
    x = 47,462.17

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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.