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Finding the Fourth Proportional to 61,224.81, 84,485.59 and 34,362.15

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Solution

The fourth proportional to 61,224.81, 84,485.59 and 34,362.15 is: 47,417.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,224.81 : 84,485.59 = 34,362.15 : x
  2. Step 2: Convert to fraction form
    61,224.81/84,485.59 = 34,362.15/x
  3. Step 3: Cross multiply
    61,224.81x = 84,485.59 × 34,362.15
  4. Step 4: Simplify right side
    61,224.81x = 2,903,106,516.42
  5. Step 5: Solve for x
    x = 2,903,106,516.42/61,224.81
  6. Step 6: Final answer
    x = 47,417.16

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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.