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Finding the Fourth Proportional to 62,290.64, 85,913.52 and 39,633.32

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Solution

The fourth proportional to 62,290.64, 85,913.52 and 39,633.32 is: 54,663.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,290.64 : 85,913.52 = 39,633.32 : x
  2. Step 2: Convert to fraction form
    62,290.64/85,913.52 = 39,633.32/x
  3. Step 3: Cross multiply
    62,290.64x = 85,913.52 × 39,633.32
  4. Step 4: Simplify right side
    62,290.64x = 3,405,038,030.49
  5. Step 5: Solve for x
    x = 3,405,038,030.49/62,290.64
  6. Step 6: Final answer
    x = 54,663.72

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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.