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Finding the Fourth Proportional to 62,686.60, 86,507 and 34,006.18

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Solution

The fourth proportional to 62,686.60, 86,507 and 34,006.18 is: 46,928.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,686.60 : 86,507 = 34,006.18 : x
  2. Step 2: Convert to fraction form
    62,686.60/86,507 = 34,006.18/x
  3. Step 3: Cross multiply
    62,686.60x = 86,507 × 34,006.18
  4. Step 4: Simplify right side
    62,686.60x = 2,941,772,613.26
  5. Step 5: Solve for x
    x = 2,941,772,613.26/62,686.60
  6. Step 6: Final answer
    x = 46,928.25

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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.